diff options
Diffstat (limited to 'openssl-1.1.0h/doc/crypto/EVP_PKEY_set1_RSA.pod')
| -rw-r--r-- | openssl-1.1.0h/doc/crypto/EVP_PKEY_set1_RSA.pod | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/openssl-1.1.0h/doc/crypto/EVP_PKEY_set1_RSA.pod b/openssl-1.1.0h/doc/crypto/EVP_PKEY_set1_RSA.pod new file mode 100644 index 0000000..884cf91 --- /dev/null +++ b/openssl-1.1.0h/doc/crypto/EVP_PKEY_set1_RSA.pod @@ -0,0 +1,131 @@ +=pod + +=head1 NAME + +EVP_PKEY_set1_RSA, EVP_PKEY_set1_DSA, EVP_PKEY_set1_DH, EVP_PKEY_set1_EC_KEY, +EVP_PKEY_get1_RSA, EVP_PKEY_get1_DSA, EVP_PKEY_get1_DH, EVP_PKEY_get1_EC_KEY, +EVP_PKEY_get0_RSA, EVP_PKEY_get0_DSA, EVP_PKEY_get0_DH, EVP_PKEY_get0_EC_KEY, +EVP_PKEY_assign_RSA, EVP_PKEY_assign_DSA, EVP_PKEY_assign_DH, +EVP_PKEY_assign_EC_KEY, EVP_PKEY_get0_hmac, EVP_PKEY_type, EVP_PKEY_id, +EVP_PKEY_base_id, EVP_PKEY_set1_engine - EVP_PKEY assignment functions + +=head1 SYNOPSIS + + #include <openssl/evp.h> + + int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key); + int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key); + int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key); + int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key); + + RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey); + DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey); + DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey); + EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey); + + const unsigned char *EVP_PKEY_get0_hmac(const EVP_PKEY *pkey, size_t *len); + RSA *EVP_PKEY_get0_RSA(EVP_PKEY *pkey); + DSA *EVP_PKEY_get0_DSA(EVP_PKEY *pkey); + DH *EVP_PKEY_get0_DH(EVP_PKEY *pkey); + EC_KEY *EVP_PKEY_get0_EC_KEY(EVP_PKEY *pkey); + + int EVP_PKEY_assign_RSA(EVP_PKEY *pkey, RSA *key); + int EVP_PKEY_assign_DSA(EVP_PKEY *pkey, DSA *key); + int EVP_PKEY_assign_DH(EVP_PKEY *pkey, DH *key); + int EVP_PKEY_assign_EC_KEY(EVP_PKEY *pkey, EC_KEY *key); + + int EVP_PKEY_id(const EVP_PKEY *pkey); + int EVP_PKEY_base_id(const EVP_PKEY *pkey); + int EVP_PKEY_type(int type); + + int EVP_PKEY_set1_engine(EVP_PKEY *pkey, ENGINE *engine); + +=head1 DESCRIPTION + +EVP_PKEY_set1_RSA(), EVP_PKEY_set1_DSA(), EVP_PKEY_set1_DH() and +EVP_PKEY_set1_EC_KEY() set the key referenced by B<pkey> to B<key>. + +EVP_PKEY_get1_RSA(), EVP_PKEY_get1_DSA(), EVP_PKEY_get1_DH() and +EVP_PKEY_get1_EC_KEY() return the referenced key in B<pkey> or +B<NULL> if the key is not of the correct type. + +EVP_PKEY_get0_hmac(), EVP_PKEY_get0_RSA(), EVP_PKEY_get0_DSA(), +EVP_PKEY_get0_DH() and EVP_PKEY_get0_EC_KEY() also return the +referenced key in B<pkey> or B<NULL> if the key is not of the +correct type but the reference count of the returned key is +B<not> incremented and so must not be freed up after use. + +EVP_PKEY_assign_RSA(), EVP_PKEY_assign_DSA(), EVP_PKEY_assign_DH() +and EVP_PKEY_assign_EC_KEY() also set the referenced key to B<key> +however these use the supplied B<key> internally and so B<key> +will be freed when the parent B<pkey> is freed. + +EVP_PKEY_base_id() returns the type of B<pkey>. For example +an RSA key will return B<EVP_PKEY_RSA>. + +EVP_PKEY_id() returns the actual OID associated with B<pkey>. Historically keys +using the same algorithm could use different OIDs. For example an RSA key could +use the OIDs corresponding to the NIDs B<NID_rsaEncryption> (equivalent to +B<EVP_PKEY_RSA>) or B<NID_rsa> (equivalent to B<EVP_PKEY_RSA2>). The use of +alternative non-standard OIDs is now rare so B<EVP_PKEY_RSA2> et al are not +often seen in practice. + +EVP_PKEY_type() returns the underlying type of the NID B<type>. For example +EVP_PKEY_type(EVP_PKEY_RSA2) will return B<EVP_PKEY_RSA>. + +EVP_PKEY_set1_engine() sets the ENGINE handling B<pkey> to B<engine>. It +must be called after the key algorithm and components are set up. +If B<engine> does not include an B<EVP_PKEY_METHOD> for B<pkey> an +error occurs. + +=head1 NOTES + +In accordance with the OpenSSL naming convention the key obtained +from or assigned to the B<pkey> using the B<1> functions must be +freed as well as B<pkey>. + +EVP_PKEY_assign_RSA(), EVP_PKEY_assign_DSA(), EVP_PKEY_assign_DH() +and EVP_PKEY_assign_EC_KEY() are implemented as macros. + +Most applications wishing to know a key type will simply call +EVP_PKEY_base_id() and will not care about the actual type: +which will be identical in almost all cases. + +Previous versions of this document suggested using EVP_PKEY_type(pkey->type) +to determine the type of a key. Since B<EVP_PKEY> is now opaque this +is no longer possible: the equivalent is EVP_PKEY_base_id(pkey). + +EVP_PKEY_set1_engine() is typically used by an ENGINE returning an HSM +key as part of its routine to load a private key. + +=head1 RETURN VALUES + +EVP_PKEY_set1_RSA(), EVP_PKEY_set1_DSA(), EVP_PKEY_set1_DH() and +EVP_PKEY_set1_EC_KEY() return 1 for success or 0 for failure. + +EVP_PKEY_get1_RSA(), EVP_PKEY_get1_DSA(), EVP_PKEY_get1_DH() and +EVP_PKEY_get1_EC_KEY() return the referenced key or B<NULL> if +an error occurred. + +EVP_PKEY_assign_RSA(), EVP_PKEY_assign_DSA(), EVP_PKEY_assign_DH() +and EVP_PKEY_assign_EC_KEY() return 1 for success and 0 for failure. + +EVP_PKEY_base_id(), EVP_PKEY_id() and EVP_PKEY_type() return a key +type or B<NID_undef> (equivalently B<EVP_PKEY_NONE>) on error. + +EVP_PKEY_set1_engine() returns 1 for success and 0 for failure. + +=head1 SEE ALSO + +L<EVP_PKEY_new(3)> + +=head1 COPYRIGHT + +Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved. + +Licensed under the OpenSSL license (the "License"). You may not use +this file except in compliance with the License. You can obtain a copy +in the file LICENSE in the source distribution or at +L<https://www.openssl.org/source/license.html>. + +=cut |