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Orson Peters 2013-01-22 11:51:53 +01:00
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@ -7,8 +7,21 @@ on the SUPERCOP "ref10" implementation. All code is in the public domain.
All code is pure ANSI C without any dependencies, except for the random seed
generation which uses standard OS cryptography APIs. If you wish to be
entirely portable define `ED25519_NO_SEED`. This does disable the
`ed25519_create_seed` function however (you can use your own seeding function
if you wish.)
`ed25519_create_seed` function however you can use your own seeding function
if you wish.
Performance
-----------
On a machine with an Intel Q6600 @ 2.4GHz I got the following speeds (running on only one thread):
Key generation: ~280us
Message signing: ~280us
Message verifying: ~840us
The speeds on other machines may vary.
Usage
-----
@ -43,9 +56,8 @@ void ed25519_create_keypair(unsigned char *verify_key, unsigned char *sign_key,
```
Creates a new key pair from the given seed. `verify_key` must be a writable 32
byte buffer, `sign_key` must be a writable 64 byte buffer and `seed` must be a
byte buffer, `sign_key` must be a writable 64 byte buffer and `seed` must be a 32 byte buffer.
32 byte buffer.
```c
void ed25519_sign(unsigned char *signature,
const unsigned char *message, size_t message_len,