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Viewing changes to src/lib/pk_pad/eme_oaep/oaep.h

  • Committer: Package Import Robot
  • Author(s): Laszlo Boszormenyi (GCS)
  • Date: 2018-03-01 22:23:25 UTC
  • mfrom: (1.2.2)
  • Revision ID: package-import@ubuntu.com-20180301222325-7p7vc45gu3hta34d
Tags: 2.4.0-2
* Don't remove .doctrees from the manual if it doesn't exist.
* Don't specify parallel to debhelper.

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src/lib/pk_pad/eme_oaep/oaep.h
 
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/*
 
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* OAEP
 
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* (C) 1999-2007 Jack Lloyd
 
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*
 
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* Botan is released under the Simplified BSD License (see license.txt)
 
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*/
 
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#ifndef BOTAN_OAEP_H_
 
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#define BOTAN_OAEP_H_
 
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#include <botan/eme.h>
 
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#include <botan/hash.h>
 
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namespace Botan {
 
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/**
 
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* OAEP (called EME1 in IEEE 1363 and in earlier versions of the library)
 
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* as specified in PKCS#1 v2.0 (RFC 2437)
 
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*/
 
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class BOTAN_PUBLIC_API(2,0) OAEP final : public EME
 
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   {
 
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   public:
 
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      size_t maximum_input_size(size_t) const override;
 
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      /**
 
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      * @param hash function to use for hashing (takes ownership)
 
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      * @param P an optional label. Normally empty.
 
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      */
 
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      OAEP(HashFunction* hash, const std::string& P = "");
 
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   private:
 
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      secure_vector<uint8_t> pad(const uint8_t in[],
 
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                              size_t in_length,
 
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                              size_t key_length,
 
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                              RandomNumberGenerator& rng) const override;
 
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      secure_vector<uint8_t> unpad(uint8_t& valid_mask,
 
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                                const uint8_t in[],
 
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                                size_t in_len) const override;
 
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      secure_vector<uint8_t> m_Phash;
 
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      std::unique_ptr<HashFunction> m_hash;
 
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   };
 
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}
 
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#endif