diff options
| -rw-r--r-- | doc/man3/EVP_DigestSignInit.pod | 8 | ||||
| -rw-r--r-- | doc/man3/EVP_DigestVerifyInit.pod | 7 |
2 files changed, 10 insertions, 5 deletions
diff --git a/doc/man3/EVP_DigestSignInit.pod b/doc/man3/EVP_DigestSignInit.pod index 19198016e0..fe2be7bbf5 100644 --- a/doc/man3/EVP_DigestSignInit.pod +++ b/doc/man3/EVP_DigestSignInit.pod @@ -24,10 +24,12 @@ 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<e> and private key B<pkey>. B<ctx> must be created with -EVP_MD_CTX_new() before calling this function. If B<pctx> is not NULL the +EVP_MD_CTX_new() 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. The digest B<type> may be NULL if -the signing algorithm supports it. +be used to set alternative signing options. Note that any existing value in +B<*pctx> is overwritten. The EVP_PKEY_CTX value returned must not be freed +directly by the application (it will be freed automatically when the EVP_MD_CTX +is freed). The digest B<type> may be NULL if the signing algorithm supports it. Only EVP_PKEY types that support signing can be used with these functions. This includes MAC algorithms where the MAC generation is considered as a form of diff --git a/doc/man3/EVP_DigestVerifyInit.pod b/doc/man3/EVP_DigestVerifyInit.pod index e24a925cfb..0d25debcb1 100644 --- a/doc/man3/EVP_DigestVerifyInit.pod +++ b/doc/man3/EVP_DigestVerifyInit.pod @@ -23,9 +23,12 @@ 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<e> and public key B<pkey>. B<ctx> must be created -with EVP_MD_CTX_new() before calling this function. If B<pctx> is not NULL the +with EVP_MD_CTX_new() 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. +can be used to set alternative verification options. Note that any existing +value in B<*pctx> is overwritten. The EVP_PKEY_CTX value returned must not be +freed directly by the application (it will be freed automatically when the +EVP_MD_CTX is freed). 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 |