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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "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 .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& #include \& \& 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); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" \&\fIEVP_PKEY_set1_RSA()\fR, \fIEVP_PKEY_set1_DSA()\fR, \fIEVP_PKEY_set1_DH()\fR and \&\fIEVP_PKEY_set1_EC_KEY()\fR set the key referenced by \fBpkey\fR to \fBkey\fR. .PP \&\fIEVP_PKEY_get1_RSA()\fR, \fIEVP_PKEY_get1_DSA()\fR, \fIEVP_PKEY_get1_DH()\fR and \&\fIEVP_PKEY_get1_EC_KEY()\fR return the referenced key in \fBpkey\fR or \&\fB\s-1NULL\s0\fR if the key is not of the correct type. .PP \&\fIEVP_PKEY_get0_hmac()\fR, \fIEVP_PKEY_get0_RSA()\fR, \fIEVP_PKEY_get0_DSA()\fR, \&\fIEVP_PKEY_get0_DH()\fR and \fIEVP_PKEY_get0_EC_KEY()\fR also return the referenced key in \fBpkey\fR or \fB\s-1NULL\s0\fR if the key is not of the correct type but the reference count of the returned key is \&\fBnot\fR incremented and so must not be freed up after use. .PP \&\fIEVP_PKEY_assign_RSA()\fR, \fIEVP_PKEY_assign_DSA()\fR, \fIEVP_PKEY_assign_DH()\fR and \fIEVP_PKEY_assign_EC_KEY()\fR also set the referenced key to \fBkey\fR however these use the supplied \fBkey\fR internally and so \fBkey\fR will be freed when the parent \fBpkey\fR is freed. .PP \&\fIEVP_PKEY_base_id()\fR returns the type of \fBpkey\fR. For example an \s-1RSA\s0 key will return \fB\s-1EVP_PKEY_RSA\s0\fR. .PP \&\fIEVP_PKEY_id()\fR returns the actual \s-1OID\s0 associated with \fBpkey\fR. Historically keys using the same algorithm could use different OIDs. For example an \s-1RSA\s0 key could use the OIDs corresponding to the NIDs \fBNID_rsaEncryption\fR (equivalent to \&\fB\s-1EVP_PKEY_RSA\s0\fR) or \fBNID_rsa\fR (equivalent to \fB\s-1EVP_PKEY_RSA2\s0\fR). The use of alternative non-standard OIDs is now rare so \fB\s-1EVP_PKEY_RSA2\s0\fR et al are not often seen in practice. .PP \&\fIEVP_PKEY_type()\fR returns the underlying type of the \s-1NID \s0\fBtype\fR. For example EVP_PKEY_type(\s-1EVP_PKEY_RSA2\s0) will return \fB\s-1EVP_PKEY_RSA\s0\fR. .PP \&\fIEVP_PKEY_set1_engine()\fR sets the \s-1ENGINE\s0 handling \fBpkey\fR to \fBengine\fR. It must be called after the key algorithm and components are set up. If \fBengine\fR does not include an \fB\s-1EVP_PKEY_METHOD\s0\fR for \fBpkey\fR an error occurs. .SH "NOTES" .IX Header "NOTES" In accordance with the OpenSSL naming convention the key obtained from or assigned to the \fBpkey\fR using the \fB1\fR functions must be freed as well as \fBpkey\fR. .PP \&\fIEVP_PKEY_assign_RSA()\fR, \fIEVP_PKEY_assign_DSA()\fR, \fIEVP_PKEY_assign_DH()\fR and \fIEVP_PKEY_assign_EC_KEY()\fR are implemented as macros. .PP Most applications wishing to know a key type will simply call \&\fIEVP_PKEY_base_id()\fR and will not care about the actual type: which will be identical in almost all cases. .PP Previous versions of this document suggested using EVP_PKEY_type(pkey\->type) to determine the type of a key. Since \fB\s-1EVP_PKEY\s0\fR is now opaque this is no longer possible: the equivalent is EVP_PKEY_base_id(pkey). .PP \&\fIEVP_PKEY_set1_engine()\fR is typically used by an \s-1ENGINE\s0 returning an \s-1HSM\s0 key as part of its routine to load a private key. .SH "RETURN VALUES" .IX Header "RETURN VALUES" \&\fIEVP_PKEY_set1_RSA()\fR, \fIEVP_PKEY_set1_DSA()\fR, \fIEVP_PKEY_set1_DH()\fR and \&\fIEVP_PKEY_set1_EC_KEY()\fR return 1 for success or 0 for failure. .PP \&\fIEVP_PKEY_get1_RSA()\fR, \fIEVP_PKEY_get1_DSA()\fR, \fIEVP_PKEY_get1_DH()\fR and \&\fIEVP_PKEY_get1_EC_KEY()\fR return the referenced key or \fB\s-1NULL\s0\fR if an error occurred. .PP \&\fIEVP_PKEY_assign_RSA()\fR, \fIEVP_PKEY_assign_DSA()\fR, \fIEVP_PKEY_assign_DH()\fR and \fIEVP_PKEY_assign_EC_KEY()\fR return 1 for success and 0 for failure. .PP \&\fIEVP_PKEY_base_id()\fR, \fIEVP_PKEY_id()\fR and \fIEVP_PKEY_type()\fR return a key type or \fBNID_undef\fR (equivalently \fB\s-1EVP_PKEY_NONE\s0\fR) on error. .PP \&\fIEVP_PKEY_set1_engine()\fR returns 1 for success and 0 for failure. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fIEVP_PKEY_new\fR\|(3) .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2002\-2016 The OpenSSL Project Authors. All Rights Reserved. .PP Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at .