diff options
Diffstat (limited to 'cypher.cpp')
| -rw-r--r-- | cypher.cpp | 25 |
1 files changed, 16 insertions, 9 deletions
@@ -38,16 +38,23 @@ #include "mpi.h" #include "log.h" +void Cypher::encrypt(const PlainPacket & in,EncryptedPacket & out, seq_nr_t seq_nr, sender_id_t sender_id) +{ + cypher(out.payload_, in.complete_payload_ , in.complete_payload_length_, seq_nr, sender_id); + out.setSenderId(sender_id); + out.setSeqNr(seq_nr); + out.setPayloadLength(in.complete_payload_length_); +} +void Cypher::decrypt(const EncryptedPacket & in,PlainPacket & out) +{ + cypher(out.complete_payload_, in.payload_ , in.payload_length_, in.getSeqNr(), in.getSenderId()); + out.setCompletePayloadLength(in.payload_length_); +} -void NullCypher::cypher(Buffer& out, Buffer& in, u_int32_t length, seq_nr_t seq_nr, sender_id_t sender_id) +void NullCypher::cypher(u_int8_t * out, u_int8_t * in, u_int32_t length, seq_nr_t seq_nr, sender_id_t sender_id) { - try - { - for(u_int32_t i=0; i<length; ++i) - out[i] = in[i]; - } - catch(std::out_of_range& o) {} + std::memcpy(out, in, length ); } const char* AesIcmCypher::MIN_GCRYPT_VERSION = "1.2.3"; @@ -109,7 +116,7 @@ void AesIcmCypher::setSalt(Buffer salt) salt_ = salt; } -void AesIcmCypher::cypher(Buffer& out, Buffer& in, u_int32_t length, seq_nr_t seq_nr, sender_id_t sender_id) +void AesIcmCypher::cypher(u_int8_t * out, u_int8_t * in, u_int32_t length, seq_nr_t seq_nr, sender_id_t sender_id) { gcry_error_t err; @@ -142,7 +149,7 @@ void AesIcmCypher::cypher(Buffer& out, Buffer& in, u_int32_t length, seq_nr_t se return; } - err = gcry_cipher_encrypt( cipher_, out, out.getLength(), in, in.getLength() ); + err = gcry_cipher_encrypt( cipher_, out, length, in, length ); if( err ) { cLog.msg(Log::PRIO_ERR) << "AesIcmCypher: Failed to generate cipher bitstream: " << gpg_strerror( err ); return; |