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Diffstat (limited to 'source/extern/curve25519/include/ed25519_signature.h')
| -rw-r--r-- | source/extern/curve25519/include/ed25519_signature.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/source/extern/curve25519/include/ed25519_signature.h b/source/extern/curve25519/include/ed25519_signature.h new file mode 100644 index 0000000..5831d9d --- /dev/null +++ b/source/extern/curve25519/include/ed25519_signature.h @@ -0,0 +1,98 @@ +/* The MIT License (MIT) + * + * Copyright (c) 2015 mehdi sotoodeh + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef __ed25519_signature_h__ +#define __ed25519_signature_h__ + +#ifdef __cplusplus +extern "C" { +#endif + +/* -- ed25519-sign ------------------------------------------------------------- */ + +#define ed25519_public_key_size 32 +#define ed25519_secret_key_size 32 +#define ed25519_private_key_size 64 +#define ed25519_signature_size 64 + +/* Generate public key associated with the secret key */ +void ed25519_CreateKeyPair( + unsigned char *pubKey, /* OUT: public key */ + unsigned char *privKey, /* OUT: private key */ + const void *blinding, /* IN: [optional] null or blinding context */ + const unsigned char *sk); /* IN: secret key (32 bytes) */ + +/* Generate message signature */ +void ed25519_SignMessage( + unsigned char *signature, /* OUT:[64 bytes] signature (R,S) */ + const unsigned char *privKey, /* IN: [64 bytes] private key (sk,pk) */ + const void *blinding, /* IN: [optional] null or blinding context */ + const unsigned char *msg, /* IN: [msg_size bytes] message to sign */ + size_t msg_size); /* IN: size of message */ + +void *ed25519_Blinding_Init( + void *context, /* IO: null or ptr blinding context */ + const unsigned char *seed, /* IN: [size bytes] random blinding seed */ + size_t size); /* IN: size of blinding seed */ + +void ed25519_Blinding_Finish( + void *context); /* IN: blinding context */ + +/* -- ed25519-verify ----------------------------------------------------------- */ + +/* Single-phased signature validation. + Returns 1 for SUCCESS and 0 for FAILURE +*/ +int ed25519_VerifySignature( + const unsigned char *signature, /* IN: [64 bytes] signature (R,S) */ + const unsigned char *publicKey, /* IN: [32 bytes] public key */ + const unsigned char *msg, /* IN: [msg_size bytes] message to sign */ + size_t msg_size); /* IN: size of message */ + +/* First part of two-phase signature validation. + This function creates context specifc to a given public key. + Needs to be called once per public key +*/ +void * ed25519_Verify_Init( + void *context, /* IO: null or verify context to use */ + const unsigned char *publicKey); /* IN: [32 bytes] public key */ + +/* Second part of two-phase signature validation. + Input context is output of ed25519_Verify_Init() for associated public key. + Call it once for each message/signature pairs + Returns 1 for SUCCESS and 0 for FAILURE +*/ +int ed25519_Verify_Check( + const void *context, /* IN: created by ed25519_Verify_Init */ + const unsigned char *signature, /* IN: signature (R,S) */ + const unsigned char *msg, /* IN: message to sign */ + size_t msg_size); /* IN: size of message */ + +/* Free up context memory */ +void ed25519_Verify_Finish(void *ctx); + +#ifdef __cplusplus +} +#endif +#endif /* __ed25519_signature_h__ */
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