Add ECDSA_SIG accessor.

[oweals/openssl.git] / include / openssl / ec.h

diff --git a/include/openssl/ec.h b/include/openssl/ec.h
index a6e35362da29bd42d267e25966798154d110ecf3..c2a4175607f5477fb538b16d5256d75bdf69b65f 100644 (file)
--- a/include/openssl/ec.h
+++ b/include/openssl/ec.h
@@ -999,6 +999,43 @@ int ECDH_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
                      EC_KEY *ecdh, void *(*KDF) (const void *in, size_t inlen,
                                                  void *out, size_t *outlen));
 
+typedef struct ECDSA_SIG_st ECDSA_SIG;
+
+/** Allocates and initialize a ECDSA_SIG structure
+ *  \return pointer to a ECDSA_SIG structure or NULL if an error occurred
+ */
+ECDSA_SIG *ECDSA_SIG_new(void);
+
+/** frees a ECDSA_SIG structure
+ *  \param  sig  pointer to the ECDSA_SIG structure
+ */
+void ECDSA_SIG_free(ECDSA_SIG *sig);
+
+/** DER encode content of ECDSA_SIG object (note: this function modifies *pp
+ *  (*pp += length of the DER encoded signature)).
+ *  \param  sig  pointer to the ECDSA_SIG object
+ *  \param  pp   pointer to a unsigned char pointer for the output or NULL
+ *  \return the length of the DER encoded ECDSA_SIG object or 0
+ */
+int i2d_ECDSA_SIG(const ECDSA_SIG *sig, unsigned char **pp);
+
+/** Decodes a DER encoded ECDSA signature (note: this function changes *pp
+ *  (*pp += len)).
+ *  \param  sig  pointer to ECDSA_SIG pointer (may be NULL)
+ *  \param  pp   memory buffer with the DER encoded signature
+ *  \param  len  length of the buffer
+ *  \return pointer to the decoded ECDSA_SIG structure (or NULL)
+ */
+ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **sig, const unsigned char **pp, long len);
+
+/** Accessor for r and s fields of ECDSA_SIG
+ *  \param  sig  pointer to ECDSA_SIG pointer
+ *  \param  pr   pointer to BIGNUM pointer for r (may be NULL)
+ *  \param  ps   pointer to BIGNUM pointer for s (may be NULL)
+ */
+void ECDSA_SIG_get0(BIGNUM **pr, BIGNUM **ps, ECDSA_SIG *sig);
+
+
 # define ECParameters_dup(x) ASN1_dup_of(EC_KEY,i2d_ECParameters,d2i_ECParameters,x)
 
 # ifndef __cplusplus
@@ -1102,6 +1139,7 @@ void ERR_load_EC_strings(void);
 # define EC_F_ECDH_CMS_DECRYPT                            238
 # define EC_F_ECDH_CMS_SET_SHARED_INFO                    239
 # define EC_F_ECDH_COMPUTE_KEY                            246
+# define EC_F_ECDSA_SIGN_SETUP                            248
 # define EC_F_ECKEY_PARAM2TYPE                            223
 # define EC_F_ECKEY_PARAM_DECODE                          212
 # define EC_F_ECKEY_PRIV_DECODE                           213
@@ -1233,6 +1271,8 @@ void ERR_load_EC_strings(void);
 # define EC_F_O2I_ECPUBLICKEY                             152
 # define EC_F_OLD_EC_PRIV_DECODE                          222
 # define EC_F_OSSL_ECDH_COMPUTE_KEY                       247
+# define EC_F_OSSL_ECDSA_SIGN_SIG                         249
+# define EC_F_OSSL_ECDSA_VERIFY_SIG                       250
 # define EC_F_PKEY_EC_CTRL                                197
 # define EC_F_PKEY_EC_CTRL_STR                            198
 # define EC_F_PKEY_EC_DERIVE                              217
@@ -1243,6 +1283,7 @@ void ERR_load_EC_strings(void);
 /* Reason codes. */
 # define EC_R_ASN1_ERROR                                  115
 # define EC_R_ASN1_UNKNOWN_FIELD                          116
+# define EC_R_BAD_SIGNATURE                               156
 # define EC_R_BIGNUM_OUT_OF_RANGE                         144
 # define EC_R_BUFFER_TOO_SMALL                            100
 # define EC_R_COORDINATES_OUT_OF_RANGE                    146
@@ -1273,6 +1314,7 @@ void ERR_load_EC_strings(void);
 # define EC_R_KEYS_NOT_SET                                140
 # define EC_R_MISSING_PARAMETERS                          124
 # define EC_R_MISSING_PRIVATE_KEY                         125
+# define EC_R_NEED_NEW_SETUP_VALUES                       157
 # define EC_R_NOT_A_NIST_PRIME                            135
 # define EC_R_NOT_A_SUPPORTED_NIST_PRIME                  136
 # define EC_R_NOT_IMPLEMENTED                             126
@@ -1287,6 +1329,7 @@ void ERR_load_EC_strings(void);
 # define EC_R_POINT_ARITHMETIC_FAILURE                    155
 # define EC_R_POINT_AT_INFINITY                           106
 # define EC_R_POINT_IS_NOT_ON_CURVE                       107
+# define EC_R_RANDOM_NUMBER_GENERATION_FAILED             158
 # define EC_R_SHARED_INFO_ERROR                           150
 # define EC_R_SLOT_FULL                                   108
 # define EC_R_UNDEFINED_GENERATOR                         113