secp256k1/include/secp256k1_ecdh.h

#ifndef SECP256K1_ECDH_H
#define SECP256K1_ECDH_H

#include "secp256k1.h"

#ifdef __cplusplus
extern "C" {
#endif

/** Compute an EC Diffie-Hellman secret in constant time
 *  Returns: 1: exponentiation was successful
 *           0: scalar was invalid (zero or overflow)
 *  Args:    ctx:        pointer to a context object (cannot be NULL)
 *  Out:     result:     a 32-byte array which will be populated by an ECDH
 *                       secret computed from the point and scalar
 *  In:      pubkey:     a pointer to a secp256k1_pubkey containing an
 *                       initialized public key
 *           privkey:    a 32-byte scalar with which to multiply the point
 */
SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdh(
  const secp256k1_context* ctx,
  unsigned char *result,
  const secp256k1_pubkey *pubkey,
  const unsigned char *privkey
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4);

#ifdef __cplusplus
}
#endif

#endif /* SECP256K1_ECDH_H */
Fix header guards using reserved identifiers Identifiers starting with an underscore and followed immediately by a capital letter are reserved by the C++ standard. The only header guards not fixed are those in the headers auto-generated from java. 2017-08-26 15:44:21 +00:00			`#ifndef SECP256K1_ECDH_H`
			`#define SECP256K1_ECDH_H`
Add ECDH module which works by hashing the output of ecmult_const 2015-06-29 20:06:28 +00:00
Fix header guards using reserved identifiers Identifiers starting with an underscore and followed immediately by a capital letter are reserved by the C++ standard. The only header guards not fixed are those in the headers auto-generated from java. 2017-08-26 15:44:21 +00:00			`#include "secp256k1.h"`
Add ECDH module which works by hashing the output of ecmult_const 2015-06-29 20:06:28 +00:00
Fix header guards using reserved identifiers Identifiers starting with an underscore and followed immediately by a capital letter are reserved by the C++ standard. The only header guards not fixed are those in the headers auto-generated from java. 2017-08-26 15:44:21 +00:00			`#ifdef __cplusplus`
Add ECDH module which works by hashing the output of ecmult_const 2015-06-29 20:06:28 +00:00			`extern "C" {`
Fix header guards using reserved identifiers Identifiers starting with an underscore and followed immediately by a capital letter are reserved by the C++ standard. The only header guards not fixed are those in the headers auto-generated from java. 2017-08-26 15:44:21 +00:00			`#endif`
Add ECDH module which works by hashing the output of ecmult_const 2015-06-29 20:06:28 +00:00
			`/** Compute an EC Diffie-Hellman secret in constant time`
			`* Returns: 1: exponentiation was successful`
			`* 0: scalar was invalid (zero or overflow)`
improve ECDH header-doc - use pubkey instead of point - use privkey instead of scalar 2015-10-05 10:50:11 +00:00			`* Args: ctx: pointer to a context object (cannot be NULL)`
			`* Out: result: a 32-byte array which will be populated by an ECDH`
			`* secret computed from the point and scalar`
			`* In: pubkey: a pointer to a secp256k1_pubkey containing an`
			`* initialized public key`
			`* privkey: a 32-byte scalar with which to multiply the point`
Add ECDH module which works by hashing the output of ecmult_const 2015-06-29 20:06:28 +00:00			`*/`
Use explicit symbol visibility. The use of static makes this somewhat redundant currently, though if we later have multiple compilation units it will be needed. This also sets the dllexport needed for shared libraries on win32. 2015-09-20 19:36:37 +00:00			`SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdh(`
Get rid of _t as it is POSIX reserved 2015-09-21 18:57:54 +00:00			`const secp256k1_context* ctx,`
Add ECDH module which works by hashing the output of ecmult_const 2015-06-29 20:06:28 +00:00			`unsigned char *result,`
improve ECDH header-doc - use pubkey instead of point - use privkey instead of scalar 2015-10-05 10:50:11 +00:00			`const secp256k1_pubkey *pubkey,`
			`const unsigned char *privkey`
Add ECDH module which works by hashing the output of ecmult_const 2015-06-29 20:06:28 +00:00			`) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4);`

Fix header guards using reserved identifiers Identifiers starting with an underscore and followed immediately by a capital letter are reserved by the C++ standard. The only header guards not fixed are those in the headers auto-generated from java. 2017-08-26 15:44:21 +00:00			`#ifdef __cplusplus`
Add ECDH module which works by hashing the output of ecmult_const 2015-06-29 20:06:28 +00:00			`}`
			`#endif`
Fix header guards using reserved identifiers Identifiers starting with an underscore and followed immediately by a capital letter are reserved by the C++ standard. The only header guards not fixed are those in the headers auto-generated from java. 2017-08-26 15:44:21 +00:00
			`#endif /* SECP256K1_ECDH_H */`