diff options
Diffstat (limited to 'src/engine/openssl/ossl_bc.cpp')
| -rw-r--r-- | src/engine/openssl/ossl_bc.cpp | 70 |
1 files changed, 36 insertions, 34 deletions
diff --git a/src/engine/openssl/ossl_bc.cpp b/src/engine/openssl/ossl_bc.cpp index 9b9a3c8a7..4d3761adb 100644 --- a/src/engine/openssl/ossl_bc.cpp +++ b/src/engine/openssl/ossl_bc.cpp @@ -1,7 +1,9 @@ -/************************************************* -* OpenSSL Block Cipher Source File * -* (C) 1999-2007 Jack Lloyd * -*************************************************/ +/* +* OpenSSL Block Cipher +* (C) 1999-2007 Jack Lloyd +* +* Distributed under the terms of the Botan license +*/ #include <botan/eng_ossl.h> #include <openssl/evp.h> @@ -10,9 +12,9 @@ namespace Botan { namespace { -/************************************************* -* EVP Block Cipher * -*************************************************/ +/* +* EVP Block Cipher +*/ class EVP_BlockCipher : public BlockCipher { public: @@ -32,9 +34,9 @@ class EVP_BlockCipher : public BlockCipher mutable EVP_CIPHER_CTX encrypt, decrypt; }; -/************************************************* -* EVP Block Cipher Constructor * -*************************************************/ +/* +* EVP Block Cipher Constructor +*/ EVP_BlockCipher::EVP_BlockCipher(const EVP_CIPHER* algo, const std::string& algo_name) : BlockCipher(EVP_CIPHER_block_size(algo), EVP_CIPHER_key_length(algo)), @@ -53,9 +55,9 @@ EVP_BlockCipher::EVP_BlockCipher(const EVP_CIPHER* algo, EVP_CIPHER_CTX_set_padding(&decrypt, 0); } -/************************************************* -* EVP Block Cipher Constructor * -*************************************************/ +/* +* EVP Block Cipher Constructor +*/ EVP_BlockCipher::EVP_BlockCipher(const EVP_CIPHER* algo, const std::string& algo_name, u32bit key_min, u32bit key_max, @@ -76,36 +78,36 @@ EVP_BlockCipher::EVP_BlockCipher(const EVP_CIPHER* algo, EVP_CIPHER_CTX_set_padding(&decrypt, 0); } -/************************************************* -* EVP Block Cipher Destructor * -*************************************************/ +/* +* EVP Block Cipher Destructor +*/ EVP_BlockCipher::~EVP_BlockCipher() { EVP_CIPHER_CTX_cleanup(&encrypt); EVP_CIPHER_CTX_cleanup(&decrypt); } -/************************************************* -* Encrypt a block * -*************************************************/ +/* +* Encrypt a block +*/ void EVP_BlockCipher::enc(const byte in[], byte out[]) const { int out_len = 0; EVP_EncryptUpdate(&encrypt, out, &out_len, in, BLOCK_SIZE); } -/************************************************* -* Decrypt a block * -*************************************************/ +/* +* Decrypt a block +*/ void EVP_BlockCipher::dec(const byte in[], byte out[]) const { int out_len = 0; EVP_DecryptUpdate(&decrypt, out, &out_len, in, BLOCK_SIZE); } -/************************************************* -* Set the key * -*************************************************/ +/* +* Set the key +*/ void EVP_BlockCipher::key_schedule(const byte key[], u32bit length) { SecureVector<byte> full_key(key, length); @@ -128,9 +130,9 @@ void EVP_BlockCipher::key_schedule(const byte key[], u32bit length) EVP_DecryptInit_ex(&decrypt, 0, 0, full_key.begin(), 0); } -/************************************************* -* Return a clone of this object * -*************************************************/ +/* +* Return a clone of this object +*/ BlockCipher* EVP_BlockCipher::clone() const { return new EVP_BlockCipher(EVP_CIPHER_CTX_cipher(&encrypt), @@ -138,9 +140,9 @@ BlockCipher* EVP_BlockCipher::clone() const MAXIMUM_KEYLENGTH, KEYLENGTH_MULTIPLE); } -/************************************************* -* Clear memory of sensitive data * -*************************************************/ +/* +* Clear memory of sensitive data +*/ void EVP_BlockCipher::clear() throw() { const EVP_CIPHER* algo = EVP_CIPHER_CTX_cipher(&encrypt); @@ -157,9 +159,9 @@ void EVP_BlockCipher::clear() throw() } -/************************************************* -* Look for an algorithm with this name * -*************************************************/ +/* +* Look for an algorithm with this name +*/ BlockCipher* OpenSSL_Engine::find_block_cipher(const SCAN_Name& request, Algorithm_Factory&) const |