From 027351f729b9e837200dae6e1520cda6577ab930 Mon Sep 17 00:00:00 2001 From: cvs2svn Date: Wed, 15 May 2002 02:29:24 +0000 Subject: This commit was manufactured by cvs2git to create branch 'unlabeled-1.1.1'. --- src/lib/libcrypto/doc/EVP_OpenInit.pod | 51 ++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 src/lib/libcrypto/doc/EVP_OpenInit.pod (limited to 'src/lib/libcrypto/doc/EVP_OpenInit.pod') diff --git a/src/lib/libcrypto/doc/EVP_OpenInit.pod b/src/lib/libcrypto/doc/EVP_OpenInit.pod new file mode 100644 index 0000000000..9707a4b399 --- /dev/null +++ b/src/lib/libcrypto/doc/EVP_OpenInit.pod @@ -0,0 +1,51 @@ +=pod + +=head1 NAME + +EVP_OpenInit, EVP_OpenUpdate, EVP_OpenFinal - EVP envelope decryption + +=head1 SYNOPSIS + + #include + + int EVP_OpenInit(EVP_CIPHER_CTX *ctx,EVP_CIPHER *type,unsigned char *ek, + int ekl,unsigned char *iv,EVP_PKEY *priv); + void EVP_OpenUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, + int *outl, unsigned char *in, int inl); + void EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, + int *outl); + +=head1 DESCRIPTION + +The EVP envelope routines are a high level interface to envelope +decryption. They decrypt a public key encrypted symmetric key and +then decrypt data using it. + +EVP_OpenInit() initialises a cipher context B for decryption +with cipher B. It decrypts the encrypted symmetric key of length +B bytes passed in the B parameter using the private key B. +The IV is supplied in the B parameter. + +EVP_OpenUpdate() and EVP_OpenFinal() have exactly the same properties +as the EVP_DecryptUpdate() and EVP_DecryptFinal() routines, as +documented on the L manual +page. + +=head1 RETURN VALUES + +EVP_OpenInit() returns -1 on error or an non zero integer (actually the +recovered secret key size) if successful. + +EVP_SealUpdate() does not return a value. + +EVP_SealFinal() returns 0 if the decrypt failed or 1 for success. + +=head1 SEE ALSO + +L,L +L, +L + +=head1 HISTORY + +=cut -- cgit v1.2.3-55-g6feb