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Diffstat (limited to 'secure/lib/libcrypto/man/EVP_SealInit.3')
| -rw-r--r-- | secure/lib/libcrypto/man/EVP_SealInit.3 | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/secure/lib/libcrypto/man/EVP_SealInit.3 b/secure/lib/libcrypto/man/EVP_SealInit.3 deleted file mode 100644 index 2c35dc0aa0da..000000000000 --- a/secure/lib/libcrypto/man/EVP_SealInit.3 +++ /dev/null @@ -1,218 +0,0 @@ -.\" Automatically generated by Pod::Man version 1.15 -.\" Wed Feb 19 16:42:54 2003 -.\" -.\" Standard preamble: -.\" ====================================================================== -.de Sh \" Subsection heading -.br -.if t .Sp -.ne 5 -.PP -\fB\\$1\fR -.PP -.. -.de Sp \" Vertical space (when we can't use .PP) -.if t .sp .5v -.if n .sp -.. -.de Ip \" List item -.br -.ie \\n(.$>=3 .ne \\$3 -.el .ne 3 -.IP "\\$1" \\$2 -.. -.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. | will give a -.\" real vertical bar. \*(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-|\(bv\*(Tr -.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" '' -'br\} -.\" -.\" If the F register is turned on, we'll generate index entries on stderr -.\" for titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and -.\" index entries marked with X<> in POD. Of course, you'll have to process -.\" the output yourself in some meaningful fashion. -.if \nF \{\ -. de IX -. tm Index:\\$1\t\\n%\t"\\$2" -.. -. nr % 0 -. rr F -.\} -.\" -.\" For nroff, turn off justification. Always turn off hyphenation; it -.\" makes way too many mistakes in technical documents. -.hy 0 -.if n .na -.\" -.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). -.\" Fear. Run. Save yourself. No user-serviceable parts. -.bd B 3 -. \" 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_SealInit 3" -.TH EVP_SealInit 3 "0.9.7a" "2003-02-19" "OpenSSL" -.UC -.SH "NAME" -EVP_SealInit, EVP_SealUpdate, EVP_SealFinal \- \s-1EVP\s0 envelope encryption -.SH "SYNOPSIS" -.IX Header "SYNOPSIS" -.Vb 1 -\& #include <openssl/evp.h> -.Ve -.Vb 6 -\& int EVP_SealInit(EVP_CIPHER_CTX *ctx, EVP_CIPHER *type, unsigned char **ek, -\& int *ekl, unsigned char *iv,EVP_PKEY **pubk, int npubk); -\& int EVP_SealUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, -\& int *outl, unsigned char *in, int inl); -\& int EVP_SealFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, -\& int *outl); -.Ve -.SH "DESCRIPTION" -.IX Header "DESCRIPTION" -The \s-1EVP\s0 envelope routines are a high level interface to envelope -encryption. They generate a random key and \s-1IV\s0 (if required) then -\&\*(L"envelope\*(R" it by using public key encryption. Data can then be -encrypted using this key. -.PP -\&\fIEVP_SealInit()\fR initializes a cipher context \fBctx\fR for encryption -with cipher \fBtype\fR using a random secret key and \s-1IV\s0. \fBtype\fR is normally -supplied by a function such as \fIEVP_des_cbc()\fR. The secret key is encrypted -using one or more public keys, this allows the same encrypted data to be -decrypted using any of the corresponding private keys. \fBek\fR is an array of -buffers where the public key encrypted secret key will be written, each buffer -must contain enough room for the corresponding encrypted key: that is -\&\fBek[i]\fR must have room for \fBEVP_PKEY_size(pubk[i])\fR bytes. The actual -size of each encrypted secret key is written to the array \fBekl\fR. \fBpubk\fR is -an array of \fBnpubk\fR public keys. -.PP -The \fBiv\fR parameter is a buffer where the generated \s-1IV\s0 is written to. It must -contain enough room for the corresponding cipher's \s-1IV\s0, as determined by (for -example) EVP_CIPHER_iv_length(type). -.PP -If the cipher does not require an \s-1IV\s0 then the \fBiv\fR parameter is ignored -and can be \fB\s-1NULL\s0\fR. -.PP -\&\fIEVP_SealUpdate()\fR and \fIEVP_SealFinal()\fR have exactly the same properties -as the \fIEVP_EncryptUpdate()\fR and \fIEVP_EncryptFinal()\fR routines, as -documented on the EVP_EncryptInit(3) manual -page. -.SH "RETURN VALUES" -.IX Header "RETURN VALUES" -\&\fIEVP_SealInit()\fR returns 0 on error or \fBnpubk\fR if successful. -.PP -\&\fIEVP_SealUpdate()\fR and \fIEVP_SealFinal()\fR return 1 for success and 0 for -failure. -.SH "NOTES" -.IX Header "NOTES" -Because a random secret key is generated the random number generator -must be seeded before calling \fIEVP_SealInit()\fR. -.PP -The public key must be \s-1RSA\s0 because it is the only OpenSSL public key -algorithm that supports key transport. -.PP -Envelope encryption is the usual method of using public key encryption -on large amounts of data, this is because public key encryption is slow -but symmetric encryption is fast. So symmetric encryption is used for -bulk encryption and the small random symmetric key used is transferred -using public key encryption. -.PP -It is possible to call \fIEVP_SealInit()\fR twice in the same way as -\&\fIEVP_EncryptInit()\fR. The first call should have \fBnpubk\fR set to 0 -and (after setting any cipher parameters) it should be called again -with \fBtype\fR set to \s-1NULL\s0. -.SH "SEE ALSO" -.IX Header "SEE ALSO" -evp(3), rand(3), -EVP_EncryptInit(3), -EVP_OpenInit(3) -.SH "HISTORY" -.IX Header "HISTORY" -\&\fIEVP_SealFinal()\fR did not return a value before OpenSSL 0.9.7. |