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Diffstat (limited to 'include')
| -rw-r--r-- | include/libuecc/ecc.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/include/libuecc/ecc.h b/include/libuecc/ecc.h new file mode 100644 index 0000000..922ca22 --- /dev/null +++ b/include/libuecc/ecc.h @@ -0,0 +1,56 @@ +/* + Copyright (c) 2012, Matthias Schiffer <mschiffer@universe-factory.net> + Partly based on public domain code by Matthew Dempsky and D. J. Bernstein. + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef _LIBUECC_ECC_H_ +#define _LIBUECC_ECC_H_ + +typedef struct _ec_public_key_xyz_256_work { + unsigned int X[32]; + unsigned int Y[32]; + unsigned int Z[32]; +} ec_public_key_xyz_256_work; + +typedef struct _ec_public_key_256 { + unsigned char p[32]; +} ec_public_key_256; + +typedef struct _ec_secret_key_256 { + unsigned char s[32]; +} ec_secret_key_256; + +typedef ec_public_key_xyz_256_work ec_25519_work; + + +void ec_25519_inflate(ec_25519_work *out, const ec_public_key_256 *in); +void ec_25519_deflate(ec_public_key_256 *out, ec_25519_work *in); + +void ec_25519_add(ec_25519_work *out, const ec_25519_work *in1, const ec_25519_work *in2); + +void ec_25519_double(ec_25519_work *out, const ec_25519_work *in); + +void ec_25519_scalarmult(ec_25519_work *out, const ec_secret_key_256 *n, const ec_25519_work *base); + +#endif /* _LIBUECC_ECC_H_ */ |