ZerethShell
File Manager
SQL Manager
/
opt
/
cpanel
/
ea-openssl
/
etc
/
pki
/
tls
/
man
/
man3
rsa.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 "rsa 3" .TH rsa 3 "2019-12-20" "1.0.2u" "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" rsa \- RSA public key cryptosystem .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 2 \& #include <openssl/rsa.h> \& #include <openssl/engine.h> \& \& RSA * RSA_new(void); \& void RSA_free(RSA *rsa); \& \& int RSA_public_encrypt(int flen, unsigned char *from, \& unsigned char *to, RSA *rsa, int padding); \& int RSA_private_decrypt(int flen, unsigned char *from, \& unsigned char *to, RSA *rsa, int padding); \& int RSA_private_encrypt(int flen, unsigned char *from, \& unsigned char *to, RSA *rsa,int padding); \& int RSA_public_decrypt(int flen, unsigned char *from, \& unsigned char *to, RSA *rsa,int padding); \& \& int RSA_sign(int type, unsigned char *m, unsigned int m_len, \& unsigned char *sigret, unsigned int *siglen, RSA *rsa); \& int RSA_verify(int type, unsigned char *m, unsigned int m_len, \& unsigned char *sigbuf, unsigned int siglen, RSA *rsa); \& \& int RSA_size(const RSA *rsa); \& \& RSA *RSA_generate_key(int num, unsigned long e, \& void (*callback)(int,int,void *), void *cb_arg); \& \& int RSA_check_key(RSA *rsa); \& \& int RSA_blinding_on(RSA *rsa, BN_CTX *ctx); \& void RSA_blinding_off(RSA *rsa); \& \& void RSA_set_default_method(const RSA_METHOD *meth); \& const RSA_METHOD *RSA_get_default_method(void); \& int RSA_set_method(RSA *rsa, const RSA_METHOD *meth); \& const RSA_METHOD *RSA_get_method(const RSA *rsa); \& RSA_METHOD *RSA_PKCS1_SSLeay(void); \& RSA_METHOD *RSA_null_method(void); \& int RSA_flags(const RSA *rsa); \& RSA *RSA_new_method(ENGINE *engine); \& \& int RSA_print(BIO *bp, RSA *x, int offset); \& int RSA_print_fp(FILE *fp, RSA *x, int offset); \& \& int RSA_get_ex_new_index(long argl, char *argp, int (*new_func)(), \& int (*dup_func)(), void (*free_func)()); \& int RSA_set_ex_data(RSA *r,int idx,char *arg); \& char *RSA_get_ex_data(RSA *r, int idx); \& \& int RSA_sign_ASN1_OCTET_STRING(int dummy, unsigned char *m, \& unsigned int m_len, unsigned char *sigret, unsigned int *siglen, \& RSA *rsa); \& int RSA_verify_ASN1_OCTET_STRING(int dummy, unsigned char *m, \& unsigned int m_len, unsigned char *sigbuf, unsigned int siglen, \& RSA *rsa); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" These functions implement \s-1RSA\s0 public key encryption and signatures as defined in \s-1PKCS\s0 #1 v2.0 [\s-1RFC 2437\s0]. .PP The \fB\s-1RSA\s0\fR structure consists of several \s-1BIGNUM\s0 components. It can contain public as well as private \s-1RSA\s0 keys: .PP .Vb 10 \& struct \& { \& BIGNUM *n; // public modulus \& BIGNUM *e; // public exponent \& BIGNUM *d; // private exponent \& BIGNUM *p; // secret prime factor \& BIGNUM *q; // secret prime factor \& BIGNUM *dmp1; // d mod (p\-1) \& BIGNUM *dmq1; // d mod (q\-1) \& BIGNUM *iqmp; // q^\-1 mod p \& // ... \& }; \& RSA .Ve .PP In public keys, the private exponent and the related secret values are \&\fB\s-1NULL\s0\fR. .PP \&\fBp\fR, \fBq\fR, \fBdmp1\fR, \fBdmq1\fR and \fBiqmp\fR may be \fB\s-1NULL\s0\fR in private keys, but the \s-1RSA\s0 operations are much faster when these values are available. .PP Note that \s-1RSA\s0 keys may use non-standard \fB\s-1RSA_METHOD\s0\fR implementations, either directly or by the use of \fB\s-1ENGINE\s0\fR modules. In some cases (eg. an \&\s-1ENGINE\s0 providing support for hardware-embedded keys), these \s-1BIGNUM\s0 values will not be used by the implementation or may be used for alternative data storage. For this reason, applications should generally avoid using \s-1RSA\s0 structure elements directly and instead use \s-1API\s0 functions to query or modify keys. .SH "CONFORMING TO" .IX Header "CONFORMING TO" \&\s-1SSL, PKCS\s0 #1 v2.0 .SH "PATENTS" .IX Header "PATENTS" \&\s-1RSA\s0 was covered by a \s-1US\s0 patent which expired in September 2000. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBrsa\fR\|(1), \fBbn\fR\|(3), \fBdsa\fR\|(3), \fBdh\fR\|(3), \&\fBrand\fR\|(3), \fBengine\fR\|(3), \fBRSA_new\fR\|(3), \&\fBRSA_public_encrypt\fR\|(3), \&\fBRSA_sign\fR\|(3), \fBRSA_size\fR\|(3), \&\fBRSA_generate_key\fR\|(3), \&\fBRSA_check_key\fR\|(3), \&\fBRSA_blinding_on\fR\|(3), \&\fBRSA_set_method\fR\|(3), \fBRSA_print\fR\|(3), \&\fBRSA_get_ex_new_index\fR\|(3), \&\fBRSA_private_encrypt\fR\|(3), \&\fBRSA_sign_ASN1_OCTET_STRING\fR\|(3), \&\fBRSA_padding_add_PKCS1_type_1\fR\|(3)
Kaydet
Vazgeç