diff options
Diffstat (limited to 'src/pubkey/keypair/keypair.cpp')
-rw-r--r-- | src/pubkey/keypair/keypair.cpp | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/src/pubkey/keypair/keypair.cpp b/src/pubkey/keypair/keypair.cpp deleted file mode 100644 index a8631062d..000000000 --- a/src/pubkey/keypair/keypair.cpp +++ /dev/null @@ -1,81 +0,0 @@ -/* -* Keypair Checks -* (C) 1999-2010 Jack Lloyd -* -* Distributed under the terms of the Botan license -*/ - -#include <botan/keypair.h> -#include <botan/pubkey.h> - -namespace Botan { - -namespace KeyPair { - -/* -* Check an encryption key pair for consistency -*/ -bool encryption_consistency_check(RandomNumberGenerator& rng, - const Private_Key& key, - const std::string& padding) - { - PK_Encryptor_EME encryptor(key, padding); - PK_Decryptor_EME decryptor(key, padding); - - /* - Weird corner case, if the key is too small to encrypt anything at - all. This can happen with very small RSA keys with PSS - */ - if(encryptor.maximum_input_size() == 0) - return true; - - std::vector<byte> plaintext = - unlock(rng.random_vec(encryptor.maximum_input_size() - 1)); - - std::vector<byte> ciphertext = encryptor.encrypt(plaintext, rng); - if(ciphertext == plaintext) - return false; - - std::vector<byte> decrypted = unlock(decryptor.decrypt(ciphertext)); - - return (plaintext == decrypted); - } - -/* -* Check a signature key pair for consistency -*/ -bool signature_consistency_check(RandomNumberGenerator& rng, - const Private_Key& key, - const std::string& padding) - { - PK_Signer signer(key, padding); - PK_Verifier verifier(key, padding); - - std::vector<byte> message = unlock(rng.random_vec(16)); - - std::vector<byte> signature; - - try - { - signature = signer.sign_message(message, rng); - } - catch(Encoding_Error) - { - return false; - } - - if(!verifier.verify_message(message, signature)) - return false; - - // Now try to check a corrupt signature, ensure it does not succeed - ++message[0]; - - if(verifier.verify_message(message, signature)) - return false; - - return true; - } - -} - -} |