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/* Rijndael (AES) for GnuPG
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* Copyright (C) 2000, 2001, 2002, 2003, 2007,
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* 2008 Free Software Foundation, Inc.
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* This file is part of Libgcrypt.
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* Libgcrypt is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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* Libgcrypt is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, see <http://www.gnu.org/licenses/>.
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*******************************************************************
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* The code here is based on the optimized implementation taken from
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* http://www.esat.kuleuven.ac.be/~rijmen/rijndael/ on Oct 2, 2000,
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* which carries this notice:
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*------------------------------------------
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* rijndael-alg-fst.c v2.3 April '2000
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* Optimised ANSI C code
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* authors: v1.0: Antoon Bosselaers
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* v2.0: Vincent Rijmen
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* This code is placed in the public domain.
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*------------------------------------------
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* The SP800-38a document is available at:
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* http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf
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#include <string.h> /* for memcmp() */
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#include "types.h" /* for byte and u32 typedefs */
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#define MAXKC (256/32)
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#define BLOCKSIZE (128/8)
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/* USE_PADLOCK indicates whether to compile the padlock specific
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#ifdef ENABLE_PADLOCK_SUPPORT
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# if defined (__i386__) && SIZEOF_UNSIGNED_LONG == 4 && defined (__GNUC__)
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#endif /*ENABLE_PADLOCK_SUPPORT*/
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static const char *selftest(void);
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int ROUNDS; /* Key-length-dependent number of rounds. */
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int decryption_prepared; /* The decryption key schedule is available. */
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int use_padlock; /* Padlock shall be used. */
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/* The key as passed to the padlock engine. */
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unsigned char padlock_key[16] __attribute__ ((aligned (16)));
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PROPERLY_ALIGNED_TYPE dummy;
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byte keyschedule[MAXROUNDS+1][4][4];
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PROPERLY_ALIGNED_TYPE dummy;
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byte keyschedule[MAXROUNDS+1][4][4];
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#define keySched u1.keyschedule
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#define keySched2 u2.keyschedule
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/* All the numbers. */
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#include "rijndael-tables.h"
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/* Perform the key setup. */
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static gcry_err_code_t
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do_setkey (RIJNDAEL_context *ctx, const byte *key, const unsigned keylen)
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static int initialized = 0;
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static const char *selftest_failed=0;
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int i,j, r, t, rconpointer = 0;
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PROPERLY_ALIGNED_TYPE dummy;
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PROPERLY_ALIGNED_TYPE dummy;
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/* The on-the-fly self tests are only run in non-fips mode. In fips
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mode explicit self-tests are required. Actually the on-the-fly
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self-tests are not fully thread-safe and it might happen that a
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failed self-test won't get noticed in another thread.
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FIXME: We might want to have a central registry of succeeded
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if (!fips_mode () && !initialized)
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selftest_failed = selftest ();
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log_error ("%s\n", selftest_failed );
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return GPG_ERR_SELFTEST_FAILED;
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ctx->decryption_prepared = 0;
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ctx->use_padlock = 0;
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if( keylen == 128/8 )
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if ((_gcry_get_hw_features () & HWF_PADLOCK_AES))
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ctx->use_padlock = 1;
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memcpy (ctx->padlock_key, key, keylen);
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else if ( keylen == 192/8 )
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else if ( keylen == 256/8 )
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return GPG_ERR_INV_KEYLEN;
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ctx->ROUNDS = ROUNDS;
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if (ctx->use_padlock)
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/* Nothing to do as we support only hardware key generation for
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#endif /*USE_PADLOCK*/
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#define W (ctx->keySched)
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for (i = 0; i < keylen; i++)
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k[i >> 2][i & 3] = key[i];
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for (j = KC-1; j >= 0; j--)
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*((u32*)tk[j]) = *((u32*)k[j]);
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/* Copy values into round key array. */
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for (j = 0; (j < KC) && (r < ROUNDS + 1); )
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for (; (j < KC) && (t < 4); j++, t++)
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*((u32*)W[r][t]) = *((u32*)tk[j]);
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while (r < ROUNDS + 1)
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/* While not enough round key material calculated calculate
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tk[0][0] ^= S[tk[KC-1][1]];
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tk[0][1] ^= S[tk[KC-1][2]];
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tk[0][2] ^= S[tk[KC-1][3]];
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tk[0][3] ^= S[tk[KC-1][0]];
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tk[0][0] ^= rcon[rconpointer++];
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for (j = 1; j < KC; j++)
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*((u32*)tk[j]) ^= *((u32*)tk[j-1]);
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for (j = 1; j < KC/2; j++)
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*((u32*)tk[j]) ^= *((u32*)tk[j-1]);
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tk[KC/2][0] ^= S[tk[KC/2 - 1][0]];
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tk[KC/2][1] ^= S[tk[KC/2 - 1][1]];
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tk[KC/2][2] ^= S[tk[KC/2 - 1][2]];
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tk[KC/2][3] ^= S[tk[KC/2 - 1][3]];
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for (j = KC/2 + 1; j < KC; j++)
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*((u32*)tk[j]) ^= *((u32*)tk[j-1]);
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/* Copy values into round key array. */
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for (j = 0; (j < KC) && (r < ROUNDS + 1); )
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for (; (j < KC) && (t < 4); j++, t++)
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*((u32*)W[r][t]) = *((u32*)tk[j]);
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static gcry_err_code_t
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rijndael_setkey (void *context, const byte *key, const unsigned keylen)
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RIJNDAEL_context *ctx = context;
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int rc = do_setkey (ctx, key, keylen);
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_gcry_burn_stack ( 100 + 16*sizeof(int));
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/* Make a decryption key from an encryption key. */
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prepare_decryption( RIJNDAEL_context *ctx )
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PROPERLY_ALIGNED_TYPE dummy;
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for (r=0; r < MAXROUNDS+1; r++ )
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*((u32*)ctx->keySched2[r][0]) = *((u32*)ctx->keySched[r][0]);
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*((u32*)ctx->keySched2[r][1]) = *((u32*)ctx->keySched[r][1]);
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*((u32*)ctx->keySched2[r][2]) = *((u32*)ctx->keySched[r][2]);
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*((u32*)ctx->keySched2[r][3]) = *((u32*)ctx->keySched[r][3]);
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#define W (ctx->keySched2)
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for (r = 1; r < ctx->ROUNDS; r++)
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*((u32*)w) = *((u32*)U1[w[0]]) ^ *((u32*)U2[w[1]])
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^ *((u32*)U3[w[2]]) ^ *((u32*)U4[w[3]]);
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*((u32*)w) = *((u32*)U1[w[0]]) ^ *((u32*)U2[w[1]])
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^ *((u32*)U3[w[2]]) ^ *((u32*)U4[w[3]]);
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*((u32*)w) = *((u32*)U1[w[0]]) ^ *((u32*)U2[w[1]])
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^ *((u32*)U3[w[2]]) ^ *((u32*)U4[w[3]]);
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*((u32*)w) = *((u32*)U1[w[0]]) ^ *((u32*)U2[w[1]])
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^ *((u32*)U3[w[2]]) ^ *((u32*)U4[w[3]]);
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/* Encrypt one block. A and B need to be aligned on a 4 byte
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boundary. A and B may be the same. */
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do_encrypt_aligned (const RIJNDAEL_context *ctx,
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unsigned char *b, const unsigned char *a)
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#define rk (ctx->keySched)
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int ROUNDS = ctx->ROUNDS;
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u32 tempu32[4]; /* Force correct alignment. */
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*((u32*)u.temp[0]) = *((u32*)(a )) ^ *((u32*)rk[0][0]);
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*((u32*)u.temp[1]) = *((u32*)(a+ 4)) ^ *((u32*)rk[0][1]);
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*((u32*)u.temp[2]) = *((u32*)(a+ 8)) ^ *((u32*)rk[0][2]);
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*((u32*)u.temp[3]) = *((u32*)(a+12)) ^ *((u32*)rk[0][3]);
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*((u32*)(b )) = (*((u32*)T1[u.temp[0][0]])
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^ *((u32*)T2[u.temp[1][1]])
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^ *((u32*)T3[u.temp[2][2]])
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^ *((u32*)T4[u.temp[3][3]]));
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*((u32*)(b + 4)) = (*((u32*)T1[u.temp[1][0]])
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^ *((u32*)T2[u.temp[2][1]])
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^ *((u32*)T3[u.temp[3][2]])
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^ *((u32*)T4[u.temp[0][3]]));
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*((u32*)(b + 8)) = (*((u32*)T1[u.temp[2][0]])
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^ *((u32*)T2[u.temp[3][1]])
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^ *((u32*)T3[u.temp[0][2]])
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^ *((u32*)T4[u.temp[1][3]]));
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*((u32*)(b +12)) = (*((u32*)T1[u.temp[3][0]])
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^ *((u32*)T2[u.temp[0][1]])
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^ *((u32*)T3[u.temp[1][2]])
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^ *((u32*)T4[u.temp[2][3]]));
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for (r = 1; r < ROUNDS-1; r++)
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*((u32*)u.temp[0]) = *((u32*)(b )) ^ *((u32*)rk[r][0]);
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*((u32*)u.temp[1]) = *((u32*)(b+ 4)) ^ *((u32*)rk[r][1]);
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*((u32*)u.temp[2]) = *((u32*)(b+ 8)) ^ *((u32*)rk[r][2]);
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*((u32*)u.temp[3]) = *((u32*)(b+12)) ^ *((u32*)rk[r][3]);
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*((u32*)(b )) = (*((u32*)T1[u.temp[0][0]])
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^ *((u32*)T2[u.temp[1][1]])
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^ *((u32*)T3[u.temp[2][2]])
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^ *((u32*)T4[u.temp[3][3]]));
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*((u32*)(b + 4)) = (*((u32*)T1[u.temp[1][0]])
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^ *((u32*)T2[u.temp[2][1]])
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^ *((u32*)T3[u.temp[3][2]])
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^ *((u32*)T4[u.temp[0][3]]));
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*((u32*)(b + 8)) = (*((u32*)T1[u.temp[2][0]])
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^ *((u32*)T2[u.temp[3][1]])
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^ *((u32*)T3[u.temp[0][2]])
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^ *((u32*)T4[u.temp[1][3]]));
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*((u32*)(b +12)) = (*((u32*)T1[u.temp[3][0]])
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^ *((u32*)T2[u.temp[0][1]])
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^ *((u32*)T3[u.temp[1][2]])
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^ *((u32*)T4[u.temp[2][3]]));
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/* Last round is special. */
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*((u32*)u.temp[0]) = *((u32*)(b )) ^ *((u32*)rk[ROUNDS-1][0]);
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*((u32*)u.temp[1]) = *((u32*)(b+ 4)) ^ *((u32*)rk[ROUNDS-1][1]);
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*((u32*)u.temp[2]) = *((u32*)(b+ 8)) ^ *((u32*)rk[ROUNDS-1][2]);
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*((u32*)u.temp[3]) = *((u32*)(b+12)) ^ *((u32*)rk[ROUNDS-1][3]);
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b[ 0] = T1[u.temp[0][0]][1];
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b[ 1] = T1[u.temp[1][1]][1];
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b[ 2] = T1[u.temp[2][2]][1];
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b[ 3] = T1[u.temp[3][3]][1];
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b[ 4] = T1[u.temp[1][0]][1];
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b[ 5] = T1[u.temp[2][1]][1];
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b[ 6] = T1[u.temp[3][2]][1];
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b[ 7] = T1[u.temp[0][3]][1];
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b[ 8] = T1[u.temp[2][0]][1];
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b[ 9] = T1[u.temp[3][1]][1];
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b[10] = T1[u.temp[0][2]][1];
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b[11] = T1[u.temp[1][3]][1];
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b[12] = T1[u.temp[3][0]][1];
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b[13] = T1[u.temp[0][1]][1];
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b[14] = T1[u.temp[1][2]][1];
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b[15] = T1[u.temp[2][3]][1];
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*((u32*)(b )) ^= *((u32*)rk[ROUNDS][0]);
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*((u32*)(b+ 4)) ^= *((u32*)rk[ROUNDS][1]);
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*((u32*)(b+ 8)) ^= *((u32*)rk[ROUNDS][2]);
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*((u32*)(b+12)) ^= *((u32*)rk[ROUNDS][3]);
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do_encrypt (const RIJNDAEL_context *ctx,
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unsigned char *bx, const unsigned char *ax)
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/* BX and AX are not necessary correctly aligned. Thus we need to
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memcpy (a.a, ax, 16);
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do_encrypt_aligned (ctx, b.b, a.a);
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memcpy (bx, b.b, 16);
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/* Encrypt or decrypt one block using the padlock engine. A and B may
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do_padlock (const RIJNDAEL_context *ctx, int decrypt_flag,
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unsigned char *bx, const unsigned char *ax)
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/* BX and AX are not necessary correctly aligned. Thus we need to
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unsigned char a[16] __attribute__ ((aligned (16)));
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unsigned char b[16] __attribute__ ((aligned (16)));
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unsigned int cword[4] __attribute__ ((aligned (16)));
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/* The control word fields are:
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127:12 11:10 9 8 7 6 5 4 3:0
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RESERVED KSIZE CRYPT INTER KEYGN CIPHR ALIGN DGEST ROUND */
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cword[0] = (ctx->ROUNDS & 15); /* (The mask is just a safeguard.) */
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cword[0] |= 0x00000200;
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("pushfl\n\t" /* Force key reload. */
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"xchg %3, %%ebx\n\t" /* Load key. */
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"movl $1, %%ecx\n\t" /* Init counter for just one block. */
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".byte 0xf3, 0x0f, 0xa7, 0xc8\n\t" /* REP XSTORE ECB. */
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"xchg %3, %%ebx\n" /* Restore GOT register. */
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: "S" (a), "D" (b), "d" (cword), "r" (ctx->padlock_key)
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: "%ecx", "cc", "memory"
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#endif /*USE_PADLOCK*/
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rijndael_encrypt (void *context, byte *b, const byte *a)
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RIJNDAEL_context *ctx = context;
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if (ctx->use_padlock)
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do_padlock (ctx, 0, b, a);
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_gcry_burn_stack (48 + 15 /* possible padding for alignment */);
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#endif /*USE_PADLOCK*/
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do_encrypt (ctx, b, a);
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_gcry_burn_stack (48 + 2*sizeof(int));
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/* Bulk encryption of complete blocks in CFB mode. Caller needs to
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make sure that IV is aligned on an unsigned long boundary. This
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function is only intended for the bulk encryption feature of
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_gcry_aes_cfb_enc (void *context, unsigned char *iv,
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void *outbuf_arg, const void *inbuf_arg,
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unsigned int nblocks)
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RIJNDAEL_context *ctx = context;
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unsigned char *outbuf = outbuf_arg;
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const unsigned char *inbuf = inbuf_arg;
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if (ctx->use_padlock)
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/* Fixme: Let Padlock do the CFBing. */
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for ( ;nblocks; nblocks-- )
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/* Encrypt the IV. */
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do_padlock (ctx, 0, iv, iv);
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/* XOR the input with the IV and store input into IV. */
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for (ivp=iv,i=0; i < BLOCKSIZE; i++ )
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*outbuf++ = (*ivp++ ^= *inbuf++);
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#endif /* USE_PADLOCK*/
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for ( ;nblocks; nblocks-- )
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/* Encrypt the IV. */
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do_encrypt_aligned (ctx, iv, iv);
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/* XOR the input with the IV and store input into IV. */
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for (ivp=iv,i=0; i < BLOCKSIZE; i++ )
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*outbuf++ = (*ivp++ ^= *inbuf++);
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_gcry_burn_stack (48 + 2*sizeof(int));
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/* Bulk encryption of complete blocks in CBC mode. Caller needs to
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make sure that IV is aligned on an unsigned long boundary. This
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function is only intended for the bulk encryption feature of
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_gcry_aes_cbc_enc (void *context, unsigned char *iv,
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void *outbuf_arg, const void *inbuf_arg,
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unsigned int nblocks, int cbc_mac)
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RIJNDAEL_context *ctx = context;
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unsigned char *outbuf = outbuf_arg;
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const unsigned char *inbuf = inbuf_arg;
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for ( ;nblocks; nblocks-- )
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for (ivp=iv, i=0; i < BLOCKSIZE; i++ )
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outbuf[i] = inbuf[i] ^ *ivp++;
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if (ctx->use_padlock)
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do_padlock (ctx, 0, outbuf, outbuf);
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#endif /*USE_PADLOCK*/
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do_encrypt (ctx, outbuf, outbuf );
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memcpy (iv, outbuf, BLOCKSIZE);
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_gcry_burn_stack (48 + 2*sizeof(int));
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/* Decrypt one block. A and B need to be aligned on a 4 byte boundary
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and the decryption must have been prepared. A and B may be the
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do_decrypt_aligned (RIJNDAEL_context *ctx,
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unsigned char *b, const unsigned char *a)
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#define rk (ctx->keySched2)
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int ROUNDS = ctx->ROUNDS;
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u32 tempu32[4]; /* Force correct alignment. */
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*((u32*)u.temp[0]) = *((u32*)(a )) ^ *((u32*)rk[ROUNDS][0]);
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*((u32*)u.temp[1]) = *((u32*)(a+ 4)) ^ *((u32*)rk[ROUNDS][1]);
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*((u32*)u.temp[2]) = *((u32*)(a+ 8)) ^ *((u32*)rk[ROUNDS][2]);
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*((u32*)u.temp[3]) = *((u32*)(a+12)) ^ *((u32*)rk[ROUNDS][3]);
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*((u32*)(b )) = (*((u32*)T5[u.temp[0][0]])
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^ *((u32*)T6[u.temp[3][1]])
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^ *((u32*)T7[u.temp[2][2]])
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^ *((u32*)T8[u.temp[1][3]]));
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*((u32*)(b+ 4)) = (*((u32*)T5[u.temp[1][0]])
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^ *((u32*)T6[u.temp[0][1]])
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^ *((u32*)T7[u.temp[3][2]])
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^ *((u32*)T8[u.temp[2][3]]));
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*((u32*)(b+ 8)) = (*((u32*)T5[u.temp[2][0]])
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^ *((u32*)T6[u.temp[1][1]])
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^ *((u32*)T7[u.temp[0][2]])
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^ *((u32*)T8[u.temp[3][3]]));
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*((u32*)(b+12)) = (*((u32*)T5[u.temp[3][0]])
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^ *((u32*)T6[u.temp[2][1]])
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^ *((u32*)T7[u.temp[1][2]])
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^ *((u32*)T8[u.temp[0][3]]));
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for (r = ROUNDS-1; r > 1; r--)
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*((u32*)u.temp[0]) = *((u32*)(b )) ^ *((u32*)rk[r][0]);
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*((u32*)u.temp[1]) = *((u32*)(b+ 4)) ^ *((u32*)rk[r][1]);
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*((u32*)u.temp[2]) = *((u32*)(b+ 8)) ^ *((u32*)rk[r][2]);
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*((u32*)u.temp[3]) = *((u32*)(b+12)) ^ *((u32*)rk[r][3]);
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*((u32*)(b )) = (*((u32*)T5[u.temp[0][0]])
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^ *((u32*)T6[u.temp[3][1]])
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^ *((u32*)T7[u.temp[2][2]])
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^ *((u32*)T8[u.temp[1][3]]));
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*((u32*)(b+ 4)) = (*((u32*)T5[u.temp[1][0]])
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^ *((u32*)T6[u.temp[0][1]])
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^ *((u32*)T7[u.temp[3][2]])
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^ *((u32*)T8[u.temp[2][3]]));
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*((u32*)(b+ 8)) = (*((u32*)T5[u.temp[2][0]])
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^ *((u32*)T6[u.temp[1][1]])
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^ *((u32*)T7[u.temp[0][2]])
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^ *((u32*)T8[u.temp[3][3]]));
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*((u32*)(b+12)) = (*((u32*)T5[u.temp[3][0]])
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^ *((u32*)T6[u.temp[2][1]])
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^ *((u32*)T7[u.temp[1][2]])
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^ *((u32*)T8[u.temp[0][3]]));
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/* Last round is special. */
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*((u32*)u.temp[0]) = *((u32*)(b )) ^ *((u32*)rk[1][0]);
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*((u32*)u.temp[1]) = *((u32*)(b+ 4)) ^ *((u32*)rk[1][1]);
635
*((u32*)u.temp[2]) = *((u32*)(b+ 8)) ^ *((u32*)rk[1][2]);
636
*((u32*)u.temp[3]) = *((u32*)(b+12)) ^ *((u32*)rk[1][3]);
637
b[ 0] = S5[u.temp[0][0]];
638
b[ 1] = S5[u.temp[3][1]];
639
b[ 2] = S5[u.temp[2][2]];
640
b[ 3] = S5[u.temp[1][3]];
641
b[ 4] = S5[u.temp[1][0]];
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b[ 5] = S5[u.temp[0][1]];
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b[ 6] = S5[u.temp[3][2]];
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b[ 7] = S5[u.temp[2][3]];
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b[ 8] = S5[u.temp[2][0]];
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b[ 9] = S5[u.temp[1][1]];
647
b[10] = S5[u.temp[0][2]];
648
b[11] = S5[u.temp[3][3]];
649
b[12] = S5[u.temp[3][0]];
650
b[13] = S5[u.temp[2][1]];
651
b[14] = S5[u.temp[1][2]];
652
b[15] = S5[u.temp[0][3]];
653
*((u32*)(b )) ^= *((u32*)rk[0][0]);
654
*((u32*)(b+ 4)) ^= *((u32*)rk[0][1]);
655
*((u32*)(b+ 8)) ^= *((u32*)rk[0][2]);
656
*((u32*)(b+12)) ^= *((u32*)rk[0][3]);
661
/* Decrypt one block. AX and BX may be the same. */
663
do_decrypt (RIJNDAEL_context *ctx, byte *bx, const byte *ax)
665
/* BX and AX are not necessary correctly aligned. Thus we need to
678
if ( !ctx->decryption_prepared )
680
prepare_decryption ( ctx );
681
_gcry_burn_stack (64);
682
ctx->decryption_prepared = 1;
685
memcpy (a.a, ax, 16);
686
do_decrypt_aligned (ctx, b.b, a.a);
687
memcpy (bx, b.b, 16);
695
rijndael_decrypt (void *context, byte *b, const byte *a)
697
RIJNDAEL_context *ctx = context;
700
if (ctx->use_padlock)
702
do_padlock (ctx, 1, b, a);
703
_gcry_burn_stack (48 + 2*sizeof(int) /* FIXME */);
706
#endif /*USE_PADLOCK*/
708
do_decrypt (ctx, b, a);
709
_gcry_burn_stack (48+2*sizeof(int));
714
/* Bulk decryption of complete blocks in CFB mode. Caller needs to
715
make sure that IV is aligned on an unisgned lonhg boundary. This
716
function is only intended for the bulk encryption feature of
719
_gcry_aes_cfb_dec (void *context, unsigned char *iv,
720
void *outbuf_arg, const void *inbuf_arg,
721
unsigned int nblocks)
723
RIJNDAEL_context *ctx = context;
724
unsigned char *outbuf = outbuf_arg;
725
const unsigned char *inbuf = inbuf_arg;
731
if (ctx->use_padlock)
733
/* Fixme: Let Padlock do the CFBing. */
734
for ( ;nblocks; nblocks-- )
736
do_padlock (ctx, 0, iv, iv);
737
for (ivp=iv,i=0; i < BLOCKSIZE; i++ )
740
*outbuf++ = *ivp ^ temp;
746
#endif /*USE_PADLOCK*/
748
for ( ;nblocks; nblocks-- )
750
do_encrypt_aligned (ctx, iv, iv);
751
for (ivp=iv,i=0; i < BLOCKSIZE; i++ )
754
*outbuf++ = *ivp ^ temp;
760
_gcry_burn_stack (48 + 2*sizeof(int));
764
/* Bulk decryption of complete blocks in CBC mode. Caller needs to
765
make sure that IV is aligned on an unsigned long boundary. This
766
function is only intended for the bulk encryption feature of
769
_gcry_aes_cbc_dec (void *context, unsigned char *iv,
770
void *outbuf_arg, const void *inbuf_arg,
771
unsigned int nblocks)
773
RIJNDAEL_context *ctx = context;
774
unsigned char *outbuf = outbuf_arg;
775
const unsigned char *inbuf = inbuf_arg;
778
unsigned char savebuf[BLOCKSIZE];
780
for ( ;nblocks; nblocks-- )
782
/* We need to save INBUF away because it may be identical to
784
memcpy (savebuf, inbuf, BLOCKSIZE);
787
if (ctx->use_padlock)
788
do_padlock (ctx, 1, outbuf, inbuf);
790
#endif /*USE_PADLOCK*/
791
do_decrypt (ctx, outbuf, inbuf);
793
for (ivp=iv, i=0; i < BLOCKSIZE; i++ )
795
memcpy (iv, savebuf, BLOCKSIZE);
800
_gcry_burn_stack (48 + 2*sizeof(int) + BLOCKSIZE + 4*sizeof (char*));
806
/* Run the self-tests for AES 128. Returns NULL on success. */
808
selftest_basic_128 (void)
810
RIJNDAEL_context ctx;
811
unsigned char scratch[16];
813
/* The test vectors are from the AES supplied ones; more or less
814
randomly taken from ecb_tbl.txt (I=42,81,14) */
815
static const unsigned char plaintext_128[16] =
817
0x01,0x4B,0xAF,0x22,0x78,0xA6,0x9D,0x33,
818
0x1D,0x51,0x80,0x10,0x36,0x43,0xE9,0x9A
820
static const unsigned char key_128[16] =
822
0xE8,0xE9,0xEA,0xEB,0xED,0xEE,0xEF,0xF0,
823
0xF2,0xF3,0xF4,0xF5,0xF7,0xF8,0xF9,0xFA
825
static const unsigned char ciphertext_128[16] =
827
0x67,0x43,0xC3,0xD1,0x51,0x9A,0xB4,0xF2,
828
0xCD,0x9A,0x78,0xAB,0x09,0xA5,0x11,0xBD
831
rijndael_setkey (&ctx, key_128, sizeof (key_128));
832
rijndael_encrypt (&ctx, scratch, plaintext_128);
833
if (memcmp (scratch, ciphertext_128, sizeof (ciphertext_128)))
834
return "AES-128 test encryption failed.";
835
rijndael_decrypt (&ctx, scratch, scratch);
836
if (memcmp (scratch, plaintext_128, sizeof (plaintext_128)))
837
return "AES-128 test decryption failed.";
842
/* Run the self-tests for AES 192. Returns NULL on success. */
844
selftest_basic_192 (void)
846
RIJNDAEL_context ctx;
847
unsigned char scratch[16];
849
static unsigned char plaintext_192[16] =
851
0x76,0x77,0x74,0x75,0xF1,0xF2,0xF3,0xF4,
852
0xF8,0xF9,0xE6,0xE7,0x77,0x70,0x71,0x72
854
static unsigned char key_192[24] =
856
0x04,0x05,0x06,0x07,0x09,0x0A,0x0B,0x0C,
857
0x0E,0x0F,0x10,0x11,0x13,0x14,0x15,0x16,
858
0x18,0x19,0x1A,0x1B,0x1D,0x1E,0x1F,0x20
860
static const unsigned char ciphertext_192[16] =
862
0x5D,0x1E,0xF2,0x0D,0xCE,0xD6,0xBC,0xBC,
863
0x12,0x13,0x1A,0xC7,0xC5,0x47,0x88,0xAA
866
rijndael_setkey (&ctx, key_192, sizeof(key_192));
867
rijndael_encrypt (&ctx, scratch, plaintext_192);
868
if (memcmp (scratch, ciphertext_192, sizeof (ciphertext_192)))
869
return "AES-192 test encryption failed.";
870
rijndael_decrypt (&ctx, scratch, scratch);
871
if (memcmp (scratch, plaintext_192, sizeof (plaintext_192)))
872
return "AES-192 test decryption failed.";
878
/* Run the self-tests for AES 256. Returns NULL on success. */
880
selftest_basic_256 (void)
882
RIJNDAEL_context ctx;
883
unsigned char scratch[16];
885
static unsigned char plaintext_256[16] =
887
0x06,0x9A,0x00,0x7F,0xC7,0x6A,0x45,0x9F,
888
0x98,0xBA,0xF9,0x17,0xFE,0xDF,0x95,0x21
890
static unsigned char key_256[32] =
892
0x08,0x09,0x0A,0x0B,0x0D,0x0E,0x0F,0x10,
893
0x12,0x13,0x14,0x15,0x17,0x18,0x19,0x1A,
894
0x1C,0x1D,0x1E,0x1F,0x21,0x22,0x23,0x24,
895
0x26,0x27,0x28,0x29,0x2B,0x2C,0x2D,0x2E
897
static const unsigned char ciphertext_256[16] =
899
0x08,0x0E,0x95,0x17,0xEB,0x16,0x77,0x71,
900
0x9A,0xCF,0x72,0x80,0x86,0x04,0x0A,0xE3
903
rijndael_setkey (&ctx, key_256, sizeof(key_256));
904
rijndael_encrypt (&ctx, scratch, plaintext_256);
905
if (memcmp (scratch, ciphertext_256, sizeof (ciphertext_256)))
906
return "AES-256 test encryption failed.";
907
rijndael_decrypt (&ctx, scratch, scratch);
908
if (memcmp (scratch, plaintext_256, sizeof (plaintext_256)))
909
return "AES-256 test decryption failed.";
914
/* Run all the self-tests and return NULL on success. This function
915
is used for the on-the-fly self-tests. */
921
if ( (r = selftest_basic_128 ())
922
|| (r = selftest_basic_192 ())
923
|| (r = selftest_basic_256 ()) )
930
/* SP800-38a.pdf for AES-128. */
932
selftest_fips_128_38a (int requested_mode)
937
const unsigned char key[16];
938
const unsigned char iv[16];
941
const unsigned char input[16];
942
const unsigned char output[16];
947
GCRY_CIPHER_MODE_CFB, /* F.3.13, CFB128-AES128 */
948
{ 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
949
0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c },
950
{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
951
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
953
{ { 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96,
954
0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a },
955
{ 0x3b, 0x3f, 0xd9, 0x2e, 0xb7, 0x2d, 0xad, 0x20,
956
0x33, 0x34, 0x49, 0xf8, 0xe8, 0x3c, 0xfb, 0x4a } },
958
{ { 0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
959
0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51 },
960
{ 0xc8, 0xa6, 0x45, 0x37, 0xa0, 0xb3, 0xa9, 0x3f,
961
0xcd, 0xe3, 0xcd, 0xad, 0x9f, 0x1c, 0xe5, 0x8b } },
963
{ { 0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11,
964
0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef },
965
{ 0x26, 0x75, 0x1f, 0x67, 0xa3, 0xcb, 0xb1, 0x40,
966
0xb1, 0x80, 0x8c, 0xf1, 0x87, 0xa4, 0xf4, 0xdf } },
968
{ { 0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17,
969
0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10 },
970
{ 0xc0, 0x4b, 0x05, 0x35, 0x7c, 0x5d, 0x1c, 0x0e,
971
0xea, 0xc4, 0xc6, 0x6f, 0x9f, 0xf7, 0xf2, 0xe6 } }
975
GCRY_CIPHER_MODE_OFB,
976
{ 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
977
0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c },
978
{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
979
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
981
{ { 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96,
982
0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a },
983
{ 0x3b, 0x3f, 0xd9, 0x2e, 0xb7, 0x2d, 0xad, 0x20,
984
0x33, 0x34, 0x49, 0xf8, 0xe8, 0x3c, 0xfb, 0x4a } },
986
{ { 0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
987
0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51 },
988
{ 0x77, 0x89, 0x50, 0x8d, 0x16, 0x91, 0x8f, 0x03,
989
0xf5, 0x3c, 0x52, 0xda, 0xc5, 0x4e, 0xd8, 0x25 } },
991
{ { 0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11,
992
0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef },
993
{ 0x97, 0x40, 0x05, 0x1e, 0x9c, 0x5f, 0xec, 0xf6,
994
0x43, 0x44, 0xf7, 0xa8, 0x22, 0x60, 0xed, 0xcc } },
996
{ { 0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17,
997
0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10 },
998
{ 0x30, 0x4c, 0x65, 0x28, 0xf6, 0x59, 0xc7, 0x78,
999
0x66, 0xa5, 0x10, 0xd9, 0xc1, 0xd6, 0xae, 0x5e } },
1003
unsigned char scratch[16];
1006
gcry_cipher_hd_t hdenc = NULL;
1007
gcry_cipher_hd_t hddec = NULL;
1009
#define Fail(a) do { \
1010
_gcry_cipher_close (hdenc); \
1011
_gcry_cipher_close (hddec); \
1015
gcry_assert (sizeof tv[0].data[0].input == sizeof scratch);
1016
gcry_assert (sizeof tv[0].data[0].output == sizeof scratch);
1018
for (tvi=0; tvi < DIM (tv); tvi++)
1019
if (tv[tvi].mode == requested_mode)
1021
if (tvi == DIM (tv))
1022
Fail ("no test data for this mode");
1024
err = _gcry_cipher_open (&hdenc, GCRY_CIPHER_AES, tv[tvi].mode, 0);
1027
err = _gcry_cipher_open (&hddec, GCRY_CIPHER_AES, tv[tvi].mode, 0);
1030
err = _gcry_cipher_setkey (hdenc, tv[tvi].key, sizeof tv[tvi].key);
1032
err = _gcry_cipher_setkey (hddec, tv[tvi].key, sizeof tv[tvi].key);
1035
err = _gcry_cipher_setiv (hdenc, tv[tvi].iv, sizeof tv[tvi].iv);
1037
err = _gcry_cipher_setiv (hddec, tv[tvi].iv, sizeof tv[tvi].iv);
1040
for (idx=0; idx < DIM (tv[tvi].data); idx++)
1042
err = _gcry_cipher_encrypt (hdenc, scratch, sizeof scratch,
1043
tv[tvi].data[idx].input,
1044
sizeof tv[tvi].data[idx].input);
1046
Fail ("encrypt command");
1047
if (memcmp (scratch, tv[tvi].data[idx].output, sizeof scratch))
1048
Fail ("encrypt mismatch");
1049
err = _gcry_cipher_decrypt (hddec, scratch, sizeof scratch,
1050
tv[tvi].data[idx].output,
1051
sizeof tv[tvi].data[idx].output);
1053
Fail ("decrypt command");
1054
if (memcmp (scratch, tv[tvi].data[idx].input, sizeof scratch))
1055
Fail ("decrypt mismatch");
1059
_gcry_cipher_close (hdenc);
1060
_gcry_cipher_close (hddec);
1065
/* Complete selftest for AES-128 with all modes and driver code. */
1066
static gpg_err_code_t
1067
selftest_fips_128 (int extended, selftest_report_func_t report)
1073
errtxt = selftest_basic_128 ();
1080
errtxt = selftest_fips_128_38a (GCRY_CIPHER_MODE_CFB);
1085
errtxt = selftest_fips_128_38a (GCRY_CIPHER_MODE_OFB);
1090
return 0; /* Succeeded. */
1094
report ("cipher", GCRY_CIPHER_AES128, what, errtxt);
1095
return GPG_ERR_SELFTEST_FAILED;
1098
/* Complete selftest for AES-192. */
1099
static gpg_err_code_t
1100
selftest_fips_192 (int extended, selftest_report_func_t report)
1105
(void)extended; /* No extended tests available. */
1108
errtxt = selftest_basic_192 ();
1113
return 0; /* Succeeded. */
1117
report ("cipher", GCRY_CIPHER_AES192, what, errtxt);
1118
return GPG_ERR_SELFTEST_FAILED;
1122
/* Complete selftest for AES-256. */
1123
static gpg_err_code_t
1124
selftest_fips_256 (int extended, selftest_report_func_t report)
1129
(void)extended; /* No extended tests available. */
1132
errtxt = selftest_basic_256 ();
1136
return 0; /* Succeeded. */
1140
report ("cipher", GCRY_CIPHER_AES256, what, errtxt);
1141
return GPG_ERR_SELFTEST_FAILED;
1146
/* Run a full self-test for ALGO and return 0 on success. */
1147
static gpg_err_code_t
1148
run_selftests (int algo, int extended, selftest_report_func_t report)
1154
case GCRY_CIPHER_AES128:
1155
ec = selftest_fips_128 (extended, report);
1157
case GCRY_CIPHER_AES192:
1158
ec = selftest_fips_192 (extended, report);
1160
case GCRY_CIPHER_AES256:
1161
ec = selftest_fips_256 (extended, report);
1164
ec = GPG_ERR_CIPHER_ALGO;
1174
static const char *rijndael_names[] =
1182
static gcry_cipher_oid_spec_t rijndael_oids[] =
1184
{ "2.16.840.1.101.3.4.1.1", GCRY_CIPHER_MODE_ECB },
1185
{ "2.16.840.1.101.3.4.1.2", GCRY_CIPHER_MODE_CBC },
1186
{ "2.16.840.1.101.3.4.1.3", GCRY_CIPHER_MODE_OFB },
1187
{ "2.16.840.1.101.3.4.1.4", GCRY_CIPHER_MODE_CFB },
1191
gcry_cipher_spec_t _gcry_cipher_spec_aes =
1193
"AES", rijndael_names, rijndael_oids, 16, 128, sizeof (RIJNDAEL_context),
1194
rijndael_setkey, rijndael_encrypt, rijndael_decrypt
1196
cipher_extra_spec_t _gcry_cipher_extraspec_aes =
1201
static const char *rijndael192_names[] =
1208
static gcry_cipher_oid_spec_t rijndael192_oids[] =
1210
{ "2.16.840.1.101.3.4.1.21", GCRY_CIPHER_MODE_ECB },
1211
{ "2.16.840.1.101.3.4.1.22", GCRY_CIPHER_MODE_CBC },
1212
{ "2.16.840.1.101.3.4.1.23", GCRY_CIPHER_MODE_OFB },
1213
{ "2.16.840.1.101.3.4.1.24", GCRY_CIPHER_MODE_CFB },
1217
gcry_cipher_spec_t _gcry_cipher_spec_aes192 =
1219
"AES192", rijndael192_names, rijndael192_oids, 16, 192, sizeof (RIJNDAEL_context),
1220
rijndael_setkey, rijndael_encrypt, rijndael_decrypt
1222
cipher_extra_spec_t _gcry_cipher_extraspec_aes192 =
1227
static const char *rijndael256_names[] =
1234
static gcry_cipher_oid_spec_t rijndael256_oids[] =
1236
{ "2.16.840.1.101.3.4.1.41", GCRY_CIPHER_MODE_ECB },
1237
{ "2.16.840.1.101.3.4.1.42", GCRY_CIPHER_MODE_CBC },
1238
{ "2.16.840.1.101.3.4.1.43", GCRY_CIPHER_MODE_OFB },
1239
{ "2.16.840.1.101.3.4.1.44", GCRY_CIPHER_MODE_CFB },
1243
gcry_cipher_spec_t _gcry_cipher_spec_aes256 =
1245
"AES256", rijndael256_names, rijndael256_oids, 16, 256,
1246
sizeof (RIJNDAEL_context),
1247
rijndael_setkey, rijndael_encrypt, rijndael_decrypt
1250
cipher_extra_spec_t _gcry_cipher_extraspec_aes256 =
added
removed
lib/libgcrypt/cipher/rijndael.c
