diff options
Diffstat (limited to 'old/botan/src/engine/openssl/bn_wrap.cpp')
-rw-r--r-- | old/botan/src/engine/openssl/bn_wrap.cpp | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/old/botan/src/engine/openssl/bn_wrap.cpp b/old/botan/src/engine/openssl/bn_wrap.cpp new file mode 100644 index 0000000..e1cfe3f --- /dev/null +++ b/old/botan/src/engine/openssl/bn_wrap.cpp @@ -0,0 +1,116 @@ +/* +* OpenSSL BN Wrapper +* (C) 1999-2007 Jack Lloyd +* +* Distributed under the terms of the Botan license +*/ + +#include <botan/bn_wrap.h> + +namespace Botan { + +/* +* OSSL_BN Constructor +*/ +OSSL_BN::OSSL_BN(const BigInt& in) + { + value = BN_new(); + SecureVector<byte> encoding = BigInt::encode(in); + if(in != 0) + BN_bin2bn(encoding, encoding.size(), value); + } + +/* +* OSSL_BN Constructor +*/ +OSSL_BN::OSSL_BN(const byte in[], u32bit length) + { + value = BN_new(); + BN_bin2bn(in, length, value); + } + +/* +* OSSL_BN Copy Constructor +*/ +OSSL_BN::OSSL_BN(const OSSL_BN& other) + { + value = BN_dup(other.value); + } + +/* +* OSSL_BN Destructor +*/ +OSSL_BN::~OSSL_BN() + { + BN_clear_free(value); + } + +/* +* OSSL_BN Assignment Operator +*/ +OSSL_BN& OSSL_BN::operator=(const OSSL_BN& other) + { + BN_copy(value, other.value); + return (*this); + } + +/* +* Export the BIGNUM as a bytestring +*/ +void OSSL_BN::encode(byte out[], u32bit length) const + { + BN_bn2bin(value, out + (length - bytes())); + } + +/* +* Return the number of significant bytes +*/ +u32bit OSSL_BN::bytes() const + { + return BN_num_bytes(value); + } + +/* +* OpenSSL to BigInt Conversions +*/ +BigInt OSSL_BN::to_bigint() const + { + SecureVector<byte> out(bytes()); + BN_bn2bin(value, out); + return BigInt::decode(out); + } + +/* +* OSSL_BN_CTX Constructor +*/ +OSSL_BN_CTX::OSSL_BN_CTX() + { + value = BN_CTX_new(); + } + +/* +* OSSL_BN_CTX Copy Constructor +*/ +OSSL_BN_CTX::OSSL_BN_CTX(const OSSL_BN_CTX&) + { + value = BN_CTX_new(); + } + +/* +* OSSL_BN_CTX Destructor +*/ +OSSL_BN_CTX::~OSSL_BN_CTX() + { + BN_CTX_free(value); + } + +/* +* OSSL_BN_CTX Assignment Operator +*/ +OSSL_BN_CTX& OSSL_BN_CTX::operator=(const OSSL_BN_CTX&) + { + value = BN_CTX_new(); + return (*this); + } + +} |