53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
#ifndef _SECP256K1_
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#define _SECP256K1_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** Initialize the library. This may take some time (10-100 ms).
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* You need to call this before calling any other function.
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* It cannot run in parallel with any other functions, but once
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* secp256k1_start() returns, all other functions are thread-safe.
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*/
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void secp256k1_start(void);
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/** Free all memory associated with this library. After this, no
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* functions can be called anymore, except secp256k1_start()
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*/
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void secp256k1_stop(void);
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/** Verify an ECDSA signature.
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* Returns: 1: correct signature
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* 0: incorrect signature
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* -1: invalid public key
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* -2: invalid signature
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*/
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int secp256k1_ecdsa_verify(const unsigned char *msg, int msglen,
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const unsigned char *sig, int siglen,
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const unsigned char *pubkey, int pubkeylen);
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/** Just validate a public key.
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* Returns: 1: valid public key
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* 0: invalid public key
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*/
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/* NOT YET IMPLEMENTED */
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int secp256k1_ecdsa_pubkey_verify(const unsigned char *pubkey, int pubkeylen);
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/** Compute the public key for a secret key.
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* In: compressed: whether the computed public key should be compressed
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* seckey: pointer to a 32-byte private key.
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* Out: pubkey: pointer to a 33-byte (if compressed) or 65-byte (if uncompressed)
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* area to store the public key.
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* Returns: 1: secret was valid, public key stores
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* 0: secret was invalid, try again.
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*/
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/* NOT YET IMPLEMENTED */
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int secp256k1_ecdsa_pubkey_create(unsigned char *pubkey, int compressed, const unsigned char *seckey)
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#ifdef __cplusplus
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}
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#endif
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#endif
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