Loading crypto/evp/bio_md.c +3 −7 Original line number Diff line number Diff line Loading @@ -192,13 +192,9 @@ static long md_ctrl(BIO *b, int cmd, long num, void *ptr) ret=0; break; case BIO_C_GET_MD_CTX: if (b->init) { pctx=ptr; *pctx=ctx; } else ret=0; b->init = 1; break; case BIO_C_DO_STATE_MACHINE: BIO_clear_retry_flags(b); Loading crypto/evp/evp.h +2 −5 Original line number Diff line number Diff line Loading @@ -453,9 +453,6 @@ typedef int (EVP_PBE_KEYGEN)(EVP_CIPHER_CTX *ctx, const char *pass, int passlen, #define EVP_VerifyUpdate(a,b,c) EVP_DigestUpdate(a,b,c) #define EVP_OpenUpdate(a,b,c,d,e) EVP_DecryptUpdate(a,b,c,d,e) #define EVP_SealUpdate(a,b,c,d,e) EVP_EncryptUpdate(a,b,c,d,e) #define EVP_SignDigestUpdate(a,b,c) EVP_DigestUpdate(a,b,c) #define EVP_VerifyDigestUpdate(a,b,c) EVP_DigestUpdate(a,b,c) #define EVP_DigestSignUpdate(a,b,c) EVP_DigestUpdate(a,b,c) #define EVP_DigestVerifyUpdate(a,b,c) EVP_DigestUpdate(a,b,c) Loading doc/crypto/BIO_f_md.pod +6 −0 Original line number Diff line number Diff line Loading @@ -58,6 +58,12 @@ If an application needs to call BIO_gets() or BIO_puts() through a chain containing digest BIOs then this can be done by prepending a buffering BIO. Before OpenSSL 0.9.9 the call to BIO_get_md_ctx() would only work if the BIO had been initialized for example by calling BIO_set_md() ). In OpenSSL 0.9.9 and later the context is always returned and the BIO is state is set to initialized. This allows applications to initialize the context externally if the standard calls such as BIO_set_md() are not sufficiently flexible. =head1 RETURN VALUES BIO_f_md() returns the digest BIO method. Loading doc/crypto/EVP_DigestSignInit.pod 0 → 100644 +87 −0 Original line number Diff line number Diff line =pod =head1 NAME EVP_DigestSignInit, EVP_DigestSignUpdate, EVP_DigestSignFinal - EVP signing functions =head1 SYNOPSIS #include <openssl/evp.h> int EVP_DigestSignInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx, const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey); int EVP_DigestSignUpdate(EVP_MD_CTX *ctx, const void *d, unsigned int cnt); int EVP_DigestSignFinal(EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen); =head1 DESCRIPTION The EVP signature routines are a high level interface to digital signatures. EVP_DigestSignInit() sets up signing context B<ctx> to use digest B<type> from ENGINE B<impl> and private key B<pkey>. B<ctx> must be initialized with EVP_MD_CTX_init() before calling this function. If B<pctx> is not NULL the EVP_PKEY_CTX of the signing operation will be written to B<*pctx>: this can be used to set alternative signing options. EVP_DigestSignUpdate() hashes B<cnt> bytes of data at B<d> into the signature context B<ctx>. This function can be called several times on the same B<ctx> to include additional data. This function is currently implemented usig a macro. EVP_DigestSignFinal() signs the data in B<ctx> places the signature in B<sig>. If B<sig> is B<NULL> then the maximum size of the output buffer is written to the B<siglen> parameter. If B<sig> is not B<NULL> then before the call the B<siglen> parameter should contain the length of the B<sig> buffer, if the call is successful the signature is written to B<sig> and the amount of data written to B<siglen>. =head1 RETURN VALUES EVP_DigestSignInit() EVP_DigestSignUpdate() and EVP_DigestSignaFinal() return 1 for success and 0 or a negative value for failure. In particular a return value of -2 indicates the operation is not supported by the public key algorithm. The error codes can be obtained from L<ERR_get_error(3)|ERR_get_error(3)>. =head1 NOTES The B<EVP> interface to digital signatures should almost always be used in preference to the low level interfaces. This is because the code then becomes transparent to the algorithm used and much more flexible. In previous versions of OpenSSL there was a link between message digest types and public key algorithms. This meant that "clone" digests such as EVP_dss1() needed to be used to sign using SHA1 and DSA. This is no longer necessary and the use of clone digest is now discouraged. For some key types and parameters the random number generator must be seeded or the operation will fail. The call to EVP_DigestSignFinal() internally finalizes a copy of the digest context. This means that calls to EVP_DigestSignUpdate() and EVP_DigestSignFinal() can be called later to digest and sign additional data. Since only a copy of the digest context is ever finalized the context must be cleaned up after use by calling EVP_MD_CTX_cleanup() or a memory leak will occur. The use of EVP_PKEY_size() with these functions is discouraged because some signature operations may have a signature length which depends on the parameters set. As a result EVP_PKEY_size() would have to return a value which indicates the maximum possible signature for any set of parameters. =head1 SEE ALSO L<EVP_DigestVerifyInit(3)|EVP_DigestVerifyInit(3)>, L<EVP_DigestInit(3)|EVP_DigestInit(3)>, L<err(3)|err(3)>, L<evp(3)|evp(3)>, L<hmac(3)|hmac(3)>, L<md2(3)|md2(3)>, L<md5(3)|md5(3)>, L<mdc2(3)|mdc2(3)>, L<ripemd(3)|ripemd(3)>, L<sha(3)|sha(3)>, L<dgst(1)|dgst(1)> =head1 HISTORY EVP_DigestSignInit(), EVP_DigestSignUpdate() and EVP_DigestSignFinal() were first added to OpenSSL 0.9.9. =cut doc/crypto/EVP_DigestVerifyInit.pod 0 → 100644 +82 −0 Original line number Diff line number Diff line =pod =head1 NAME EVP_DigestVerifyInit, EVP_DigestVerifyUpdate, EVP_DigestVerifyFinal - EVP signature verification functions =head1 SYNOPSIS #include <openssl/evp.h> int EVP_DigestVerifyInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx, const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey); int EVP_DigestVerifyUpdate(EVP_MD_CTX *ctx, const void *d, unsigned int cnt); int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, unsigned char *sig, size_t siglen); =head1 DESCRIPTION The EVP signature routines are a high level interface to digital signatures. EVP_DigestVerifyInit() sets up verification context B<ctx> to use digest B<type> from ENGINE B<impl> and public key B<pkey>. B<ctx> must be initialized with EVP_MD_CTX_init() before calling this function. If B<pctx> is not NULL the EVP_PKEY_CTX of the verification operation will be written to B<*pctx>: this can be used to set alternative verification options. EVP_DigestVerifyUpdate() hashes B<cnt> bytes of data at B<d> into the verification context B<ctx>. This function can be called several times on the same B<ctx> to include additional data. This function is currently implemented using a macro. EVP_DigestVerifyFinal() verifies the data in B<ctx> against the signature in B<sig> of length B<siglen>. =head1 RETURN VALUES EVP_DigestVerifyInit() and EVP_DigestVerifyUpdate() return 1 for success and 0 or a negative value for failure. In particular a return value of -2 indicates the operation is not supported by the public key algorithm. Unlike other functions the return value 0 from EVP_DigestVerifyFinal() only indicates that the signature did not not verify successfully (that is tbs did not match the original data or the signature was of invalid form) it is not an indication of a more serious error. The error codes can be obtained from L<ERR_get_error(3)|ERR_get_error(3)>. =head1 NOTES The B<EVP> interface to digital signatures should almost always be used in preference to the low level interfaces. This is because the code then becomes transparent to the algorithm used and much more flexible. In previous versions of OpenSSL there was a link between message digest types and public key algorithms. This meant that "clone" digests such as EVP_dss1() needed to be used to sign using SHA1 and DSA. This is no longer necessary and the use of clone digest is now discouraged. For some key types and parameters the random number generator must be seeded or the operation will fail. The call to EVP_DigestVerifyFinal() internally finalizes a copy of the digest context. This means that calls to EVP_VerifyUpdate() and EVP_VerifyFinal() can be called later to digest and verify additional data. Since only a copy of the digest context is ever finalized the context must be cleaned up after use by calling EVP_MD_CTX_cleanup() or a memory leak will occur. =head1 SEE ALSO L<EVP_DigestSignInit(3)|EVP_DigestSignInit(3)>, L<EVP_DigestInit(3)|EVP_DigestInit(3)>, L<err(3)|err(3)>, L<evp(3)|evp(3)>, L<hmac(3)|hmac(3)>, L<md2(3)|md2(3)>, L<md5(3)|md5(3)>, L<mdc2(3)|mdc2(3)>, L<ripemd(3)|ripemd(3)>, L<sha(3)|sha(3)>, L<dgst(1)|dgst(1)> =head1 HISTORY EVP_DigestVerifyInit(), EVP_DigestVerifyUpdate() and EVP_DigestVerifyFinal() were first added to OpenSSL 0.9.9. =cut Loading
crypto/evp/bio_md.c +3 −7 Original line number Diff line number Diff line Loading @@ -192,13 +192,9 @@ static long md_ctrl(BIO *b, int cmd, long num, void *ptr) ret=0; break; case BIO_C_GET_MD_CTX: if (b->init) { pctx=ptr; *pctx=ctx; } else ret=0; b->init = 1; break; case BIO_C_DO_STATE_MACHINE: BIO_clear_retry_flags(b); Loading
crypto/evp/evp.h +2 −5 Original line number Diff line number Diff line Loading @@ -453,9 +453,6 @@ typedef int (EVP_PBE_KEYGEN)(EVP_CIPHER_CTX *ctx, const char *pass, int passlen, #define EVP_VerifyUpdate(a,b,c) EVP_DigestUpdate(a,b,c) #define EVP_OpenUpdate(a,b,c,d,e) EVP_DecryptUpdate(a,b,c,d,e) #define EVP_SealUpdate(a,b,c,d,e) EVP_EncryptUpdate(a,b,c,d,e) #define EVP_SignDigestUpdate(a,b,c) EVP_DigestUpdate(a,b,c) #define EVP_VerifyDigestUpdate(a,b,c) EVP_DigestUpdate(a,b,c) #define EVP_DigestSignUpdate(a,b,c) EVP_DigestUpdate(a,b,c) #define EVP_DigestVerifyUpdate(a,b,c) EVP_DigestUpdate(a,b,c) Loading
doc/crypto/BIO_f_md.pod +6 −0 Original line number Diff line number Diff line Loading @@ -58,6 +58,12 @@ If an application needs to call BIO_gets() or BIO_puts() through a chain containing digest BIOs then this can be done by prepending a buffering BIO. Before OpenSSL 0.9.9 the call to BIO_get_md_ctx() would only work if the BIO had been initialized for example by calling BIO_set_md() ). In OpenSSL 0.9.9 and later the context is always returned and the BIO is state is set to initialized. This allows applications to initialize the context externally if the standard calls such as BIO_set_md() are not sufficiently flexible. =head1 RETURN VALUES BIO_f_md() returns the digest BIO method. Loading
doc/crypto/EVP_DigestSignInit.pod 0 → 100644 +87 −0 Original line number Diff line number Diff line =pod =head1 NAME EVP_DigestSignInit, EVP_DigestSignUpdate, EVP_DigestSignFinal - EVP signing functions =head1 SYNOPSIS #include <openssl/evp.h> int EVP_DigestSignInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx, const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey); int EVP_DigestSignUpdate(EVP_MD_CTX *ctx, const void *d, unsigned int cnt); int EVP_DigestSignFinal(EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen); =head1 DESCRIPTION The EVP signature routines are a high level interface to digital signatures. EVP_DigestSignInit() sets up signing context B<ctx> to use digest B<type> from ENGINE B<impl> and private key B<pkey>. B<ctx> must be initialized with EVP_MD_CTX_init() before calling this function. If B<pctx> is not NULL the EVP_PKEY_CTX of the signing operation will be written to B<*pctx>: this can be used to set alternative signing options. EVP_DigestSignUpdate() hashes B<cnt> bytes of data at B<d> into the signature context B<ctx>. This function can be called several times on the same B<ctx> to include additional data. This function is currently implemented usig a macro. EVP_DigestSignFinal() signs the data in B<ctx> places the signature in B<sig>. If B<sig> is B<NULL> then the maximum size of the output buffer is written to the B<siglen> parameter. If B<sig> is not B<NULL> then before the call the B<siglen> parameter should contain the length of the B<sig> buffer, if the call is successful the signature is written to B<sig> and the amount of data written to B<siglen>. =head1 RETURN VALUES EVP_DigestSignInit() EVP_DigestSignUpdate() and EVP_DigestSignaFinal() return 1 for success and 0 or a negative value for failure. In particular a return value of -2 indicates the operation is not supported by the public key algorithm. The error codes can be obtained from L<ERR_get_error(3)|ERR_get_error(3)>. =head1 NOTES The B<EVP> interface to digital signatures should almost always be used in preference to the low level interfaces. This is because the code then becomes transparent to the algorithm used and much more flexible. In previous versions of OpenSSL there was a link between message digest types and public key algorithms. This meant that "clone" digests such as EVP_dss1() needed to be used to sign using SHA1 and DSA. This is no longer necessary and the use of clone digest is now discouraged. For some key types and parameters the random number generator must be seeded or the operation will fail. The call to EVP_DigestSignFinal() internally finalizes a copy of the digest context. This means that calls to EVP_DigestSignUpdate() and EVP_DigestSignFinal() can be called later to digest and sign additional data. Since only a copy of the digest context is ever finalized the context must be cleaned up after use by calling EVP_MD_CTX_cleanup() or a memory leak will occur. The use of EVP_PKEY_size() with these functions is discouraged because some signature operations may have a signature length which depends on the parameters set. As a result EVP_PKEY_size() would have to return a value which indicates the maximum possible signature for any set of parameters. =head1 SEE ALSO L<EVP_DigestVerifyInit(3)|EVP_DigestVerifyInit(3)>, L<EVP_DigestInit(3)|EVP_DigestInit(3)>, L<err(3)|err(3)>, L<evp(3)|evp(3)>, L<hmac(3)|hmac(3)>, L<md2(3)|md2(3)>, L<md5(3)|md5(3)>, L<mdc2(3)|mdc2(3)>, L<ripemd(3)|ripemd(3)>, L<sha(3)|sha(3)>, L<dgst(1)|dgst(1)> =head1 HISTORY EVP_DigestSignInit(), EVP_DigestSignUpdate() and EVP_DigestSignFinal() were first added to OpenSSL 0.9.9. =cut
doc/crypto/EVP_DigestVerifyInit.pod 0 → 100644 +82 −0 Original line number Diff line number Diff line =pod =head1 NAME EVP_DigestVerifyInit, EVP_DigestVerifyUpdate, EVP_DigestVerifyFinal - EVP signature verification functions =head1 SYNOPSIS #include <openssl/evp.h> int EVP_DigestVerifyInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx, const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey); int EVP_DigestVerifyUpdate(EVP_MD_CTX *ctx, const void *d, unsigned int cnt); int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, unsigned char *sig, size_t siglen); =head1 DESCRIPTION The EVP signature routines are a high level interface to digital signatures. EVP_DigestVerifyInit() sets up verification context B<ctx> to use digest B<type> from ENGINE B<impl> and public key B<pkey>. B<ctx> must be initialized with EVP_MD_CTX_init() before calling this function. If B<pctx> is not NULL the EVP_PKEY_CTX of the verification operation will be written to B<*pctx>: this can be used to set alternative verification options. EVP_DigestVerifyUpdate() hashes B<cnt> bytes of data at B<d> into the verification context B<ctx>. This function can be called several times on the same B<ctx> to include additional data. This function is currently implemented using a macro. EVP_DigestVerifyFinal() verifies the data in B<ctx> against the signature in B<sig> of length B<siglen>. =head1 RETURN VALUES EVP_DigestVerifyInit() and EVP_DigestVerifyUpdate() return 1 for success and 0 or a negative value for failure. In particular a return value of -2 indicates the operation is not supported by the public key algorithm. Unlike other functions the return value 0 from EVP_DigestVerifyFinal() only indicates that the signature did not not verify successfully (that is tbs did not match the original data or the signature was of invalid form) it is not an indication of a more serious error. The error codes can be obtained from L<ERR_get_error(3)|ERR_get_error(3)>. =head1 NOTES The B<EVP> interface to digital signatures should almost always be used in preference to the low level interfaces. This is because the code then becomes transparent to the algorithm used and much more flexible. In previous versions of OpenSSL there was a link between message digest types and public key algorithms. This meant that "clone" digests such as EVP_dss1() needed to be used to sign using SHA1 and DSA. This is no longer necessary and the use of clone digest is now discouraged. For some key types and parameters the random number generator must be seeded or the operation will fail. The call to EVP_DigestVerifyFinal() internally finalizes a copy of the digest context. This means that calls to EVP_VerifyUpdate() and EVP_VerifyFinal() can be called later to digest and verify additional data. Since only a copy of the digest context is ever finalized the context must be cleaned up after use by calling EVP_MD_CTX_cleanup() or a memory leak will occur. =head1 SEE ALSO L<EVP_DigestSignInit(3)|EVP_DigestSignInit(3)>, L<EVP_DigestInit(3)|EVP_DigestInit(3)>, L<err(3)|err(3)>, L<evp(3)|evp(3)>, L<hmac(3)|hmac(3)>, L<md2(3)|md2(3)>, L<md5(3)|md5(3)>, L<mdc2(3)|mdc2(3)>, L<ripemd(3)|ripemd(3)>, L<sha(3)|sha(3)>, L<dgst(1)|dgst(1)> =head1 HISTORY EVP_DigestVerifyInit(), EVP_DigestVerifyUpdate() and EVP_DigestVerifyFinal() were first added to OpenSSL 0.9.9. =cut
