← Back
Editing: EVP_PKEY_assign_DSA.3
.\" Automatically generated by Pod::Man 4.11 (Pod::Simple 3.35) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" Set up some character translations and predefined strings. \*(-- will .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left .\" double quote, and \*(R" will give a right double quote. \*(C+ will .\" give a nicer C++. Capital omega is used to do unbreakable dashes and .\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, .\" nothing in troff, for use with C<>. .tr \(*W- .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' .ie n \{\ . ds -- \(*W- . ds PI pi . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch . ds L" "" . ds R" "" . ds C` "" . ds C' "" 'br\} .el\{\ . ds -- \|\(em\| . ds PI \(*p . ds L" `` . ds R" '' . ds C` . ds C' 'br\} .\" .\" Escape single quotes in literal strings from groff's Unicode transform. .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" .\" If the F register is >0, we'll generate index entries on stderr for .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index .\" entries marked with X<> in POD. Of course, you'll have to process the .\" output yourself in some meaningful fashion. .\" .\" Avoid warning from groff about undefined register 'F'. .de IX .. .nr rF 0 .if \n(.g .if rF .nr rF 1 .if (\n(rF:(\n(.g==0)) \{\ . if \nF \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} . \} .\} .rr rF .\" .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). .\" Fear. Run. Save yourself. No user-serviceable parts. . \" fudge factors for nroff and troff .if n \{\ . ds #H 0 . ds #V .8m . ds #F .3m . ds #[ \f1 . ds #] \fP .\} .if t \{\ . ds #H ((1u-(\\\\n(.fu%2u))*.13m) . ds #V .6m . ds #F 0 . ds #[ \& . ds #] \& .\} . \" simple accents for nroff and troff .if n \{\ . ds ' \& . ds ` \& . ds ^ \& . ds , \& . ds ~ ~ . ds / .\} .if t \{\ . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' .\} . \" troff and (daisy-wheel) nroff accents .ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' .ds 8 \h'\*(#H'\(*b\h'-\*(#H' .ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] .ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' .ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' .ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] .ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] .ds ae a\h'-(\w'a'u*4/10)'e .ds Ae A\h'-(\w'A'u*4/10)'E . \" corrections for vroff .if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' .if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' . \" for low resolution devices (crt and lpr) .if \n(.H>23 .if \n(.V>19 \ \{\ . ds : e . ds 8 ss . ds o a . ds d- d\h'-1'\(ga . ds D- D\h'-1'\(hy . ds th \o'bp' . ds Th \o'LP' . ds ae ae . ds Ae AE .\} .rm #[ #] #H #V #F C .\" ======================================================================== .\" .IX Title "EVP_PKEY_SET1_RSA 3" .TH EVP_PKEY_SET1_RSA 3 "2023-09-11" "1.1.1w" "OpenSSL" .\" For nroff, turn off justification. 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_assign_POLY1305, EVP_PKEY_assign_SIPHASH, EVP_PKEY_get0_hmac, EVP_PKEY_get0_poly1305, EVP_PKEY_get0_siphash, EVP_PKEY_type, EVP_PKEY_id, EVP_PKEY_base_id, EVP_PKEY_set_alias_type, EVP_PKEY_set1_engine, EVP_PKEY_get0_engine \- EVP_PKEY assignment functions .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& #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); \& const unsigned char *EVP_PKEY_get0_poly1305(const EVP_PKEY *pkey, size_t *len); \& const unsigned char *EVP_PKEY_get0_siphash(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_assign_POLY1305(EVP_PKEY *pkey, ASN1_OCTET_STRING *key); \& int EVP_PKEY_assign_SIPHASH(EVP_PKEY *pkey, ASN1_OCTET_STRING *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_set_alias_type(EVP_PKEY *pkey, int type); \& \& ENGINE *EVP_PKEY_get0_engine(const EVP_PKEY *pkey); \& int EVP_PKEY_set1_engine(EVP_PKEY *pkey, ENGINE *engine); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" \&\fBEVP_PKEY_set1_RSA()\fR, \fBEVP_PKEY_set1_DSA()\fR, \fBEVP_PKEY_set1_DH()\fR and \&\fBEVP_PKEY_set1_EC_KEY()\fR set the key referenced by \fBpkey\fR to \fBkey\fR. .PP \&\fBEVP_PKEY_get1_RSA()\fR, \fBEVP_PKEY_get1_DSA()\fR, \fBEVP_PKEY_get1_DH()\fR and \&\fBEVP_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 \&\fBEVP_PKEY_get0_hmac()\fR, \fBEVP_PKEY_get0_poly1305()\fR, \fBEVP_PKEY_get0_siphash()\fR, \&\fBEVP_PKEY_get0_RSA()\fR, \fBEVP_PKEY_get0_DSA()\fR, \fBEVP_PKEY_get0_DH()\fR and \fBEVP_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 \&\fBEVP_PKEY_assign_RSA()\fR, \fBEVP_PKEY_assign_DSA()\fR, \fBEVP_PKEY_assign_DH()\fR, \&\fBEVP_PKEY_assign_EC_KEY()\fR, \fBEVP_PKEY_assign_POLY1305()\fR and \&\fBEVP_PKEY_assign_SIPHASH()\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 \&\fBEVP_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 \&\fBEVP_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 \&\fBEVP_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 \&\fBEVP_PKEY_get0_engine()\fR returns a reference to the \s-1ENGINE\s0 handling \fBpkey\fR. .PP \&\fBEVP_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. .PP \&\fBEVP_PKEY_set_alias_type()\fR allows modifying a \s-1EVP_PKEY\s0 to use a different set of algorithms than the default. This is currently used to support \s-1SM2\s0 keys, which use an identical encoding to \s-1ECDSA.\s0 .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 \&\fBEVP_PKEY_assign_RSA()\fR, \fBEVP_PKEY_assign_DSA()\fR, \fBEVP_PKEY_assign_DH()\fR, \&\fBEVP_PKEY_assign_EC_KEY()\fR, \fBEVP_PKEY_assign_POLY1305()\fR and \fBEVP_PKEY_assign_SIPHASH()\fR are implemented as macros. .PP Most applications wishing to know a key type will simply call \&\fBEVP_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 \&\fBEVP_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" \&\fBEVP_PKEY_set1_RSA()\fR, \fBEVP_PKEY_set1_DSA()\fR, \fBEVP_PKEY_set1_DH()\fR and \&\fBEVP_PKEY_set1_EC_KEY()\fR return 1 for success or 0 for failure. .PP \&\fBEVP_PKEY_get1_RSA()\fR, \fBEVP_PKEY_get1_DSA()\fR, \fBEVP_PKEY_get1_DH()\fR and \&\fBEVP_PKEY_get1_EC_KEY()\fR return the referenced key or \fB\s-1NULL\s0\fR if an error occurred. .PP \&\fBEVP_PKEY_assign_RSA()\fR, \fBEVP_PKEY_assign_DSA()\fR, \fBEVP_PKEY_assign_DH()\fR, \&\fBEVP_PKEY_assign_EC_KEY()\fR, \fBEVP_PKEY_assign_POLY1305()\fR and \fBEVP_PKEY_assign_SIPHASH()\fR return 1 for success and 0 for failure. .PP \&\fBEVP_PKEY_base_id()\fR, \fBEVP_PKEY_id()\fR and \fBEVP_PKEY_type()\fR return a key type or \fBNID_undef\fR (equivalently \fB\s-1EVP_PKEY_NONE\s0\fR) on error. .PP \&\fBEVP_PKEY_set1_engine()\fR returns 1 for success and 0 for failure. .PP \&\fBEVP_PKEY_set_alias_type()\fR returns 1 for success and 0 for error. .SH "EXAMPLES" .IX Header "EXAMPLES" After loading an \s-1ECC\s0 key, it is possible to convert it to using \s-1SM2\s0 algorithms with EVP_PKEY_set_alias_type: .PP .Vb 1 \& EVP_PKEY_set_alias_type(pkey, EVP_PKEY_SM2); .Ve .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBEVP_PKEY_new\fR\|(3) .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2002\-2019 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 <https://www.openssl.org/source/license.html>.
Save File
Cancel