--- src/secure/lib/libcrypto/man/blowfish.3 2004/09/02 09:26:58 1.2 +++ src/secure/lib/libcrypto/man/blowfish.3 2004/12/18 21:34:10 1.3 @@ -1,12 +1,8 @@ -.rn '' }` -''' $RCSfile: blowfish.3,v $$Revision: 1.2 $$Date: 2004/09/02 09:26:58 $ -''' -''' $Log: blowfish.3,v $ -''' Revision 1.2 2004/09/02 09:26:58 asmodai -''' Commit manual pages after running 'man-update' and add new manual pages. -''' -''' -.de Sh +.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.14 +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sh \" Subsection heading .br .if t .Sp .ne 5 @@ -14,150 +10,98 @@ \fB\\$1\fR .PP .. -.de Sp +.de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. -.de Ip -.br -.ie \\n(.$>=3 .ne \\$3 -.el .ne 3 -.IP "\\$1" \\$2 -.. -.de Vb +.de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. -.de Ve +.de Ve \" End verbatim text .ft R - .fi .. -''' -''' -''' Set up \*(-- to give an unbreakable dash; -''' string Tr holds user defined translation string. -''' Bell System Logo is used as a dummy character. -''' +.\" 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" "" -''' \*(M", \*(S", \*(N" and \*(T" are the equivalent of -''' \*(L" and \*(R", except that they are used on ".xx" lines, -''' such as .IP and .SH, which do another additional levels of -''' double-quote interpretation -.ds M" """ -.ds S" """ -.ds N" """"" -.ds T" """"" -.ds L' ' -.ds R' ' -.ds M' ' -.ds S' ' -.ds N' ' -.ds T' ' +. 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\| -.tr \*(Tr -.ds L" `` -.ds R" '' -.ds M" `` -.ds S" '' -.ds N" `` -.ds T" '' -.ds L' ` -.ds R' ' -.ds M' ` -.ds S' ' -.ds N' ` -.ds T' ' -.ds PI \(*p +. ds -- \|\(em\| +. ds PI \(*p +. ds L" `` +. ds R" '' 'br\} -.\" If the F register is turned on, we'll generate -.\" index entries out stderr for the following things: -.\" TH Title -.\" SH Header -.\" Sh Subsection -.\" Ip Item -.\" X<> Xref (embedded -.\" Of course, you have to process the output yourself -.\" in some meaninful fashion. -.if \nF \{ -.de IX -.tm Index:\\$1\t\\n%\t"\\$2" -.. -.nr % 0 -.rr F -.\} -.TH blowfish 3 "0.9.7d" "2/Sep/2004" "OpenSSL" -.UC -.if n .hy 0 +.\" +.\" 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 -.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' -.de CQ \" put $1 in typewriter font -.ft CW -'if n "\c -'if t \\&\\$1\c -'if n \\&\\$1\c -'if n \&" -\\&\\$2 \\$3 \\$4 \\$5 \\$6 \\$7 -'.ft R -.. -.\" @(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2 -. \" AM - accent mark definitions -.bd B 3 -. \" fudge factors for nroff and troff +.\" +.\" 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 +. 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 #] \& +. ds #H ((1u-(\\\\n(.fu%2u))*.13m) +. ds #V .6m +. ds #F 0 +. ds #[ \& +. ds #] \& .\} -. \" simple accents for nroff and troff +. \" simple accents for nroff and troff .if n \{\ -. ds ' \& -. ds ` \& -. ds ^ \& -. ds , \& -. ds ~ ~ -. ds ? ? -. ds ! ! -. ds / -. ds q +. 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 ? \s-2c\h'-\w'c'u*7/10'\u\h'\*(#H'\zi\d\s+2\h'\w'c'u*8/10' -. ds ! \s-2\(or\s+2\h'-\w'\(or'u'\v'-.8m'.\v'.8m' -. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' -. ds q o\h'-\w'o'u*8/10'\s-4\v'.4m'\z\(*i\v'-.4m'\s+4\h'\w'o'u*8/10' +. 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 +. \" 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 v \\k:\h'-(\\n(.wu*9/10-\*(#H)'\v'-\*(#V'\*(#[\s-4v\s0\v'\*(#V'\h'|\\n:u'\*(#] -.ds _ \\k:\h'-(\\n(.wu*9/10-\*(#H+(\*(#F*2/3))'\v'-.4m'\z\(hy\v'.4m'\h'|\\n:u' -.ds . \\k:\h'-(\\n(.wu*8/10)'\v'\*(#V*4/10'\z.\v'-\*(#V*4/10'\h'|\\n:u' -.ds 3 \*(#[\v'.2m'\s-2\&3\s0\v'-.2m'\*(#] .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' @@ -165,42 +109,40 @@ .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 -.ds oe o\h'-(\w'o'u*4/10)'e -.ds Oe O\h'-(\w'O'u*4/10)'E -. \" corrections for vroff +. \" 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) +. \" for low resolution devices (crt and lpr) .if \n(.H>23 .if \n(.V>19 \ \{\ -. ds : e -. ds 8 ss -. ds v \h'-1'\o'\(aa\(ga' -. ds _ \h'-1'^ -. ds . \h'-1'. -. ds 3 3 -. 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 -. ds oe oe -. ds Oe OE +. 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 "blowfish 3" +.TH blowfish 3 "2004-12-18" "0.9.7e" "OpenSSL" .SH "NAME" blowfish, BF_set_key, BF_encrypt, BF_decrypt, BF_ecb_encrypt, BF_cbc_encrypt, BF_cfb64_encrypt, BF_ofb64_encrypt, BF_options \- Blowfish encryption .SH "SYNOPSIS" -.PP +.IX Header "SYNOPSIS" .Vb 1 \& #include .Ve +.PP .Vb 1 \& void BF_set_key(BF_KEY *key, int len, const unsigned char *data); .Ve +.PP .Vb 10 \& void BF_ecb_encrypt(const unsigned char *in, unsigned char *out, \& BF_KEY *key, int enc); @@ -213,100 +155,86 @@ BF_cfb64_encrypt, BF_ofb64_encrypt, BF_o \& long length, BF_KEY *schedule, unsigned char *ivec, int *num); \& const char *BF_options(void); .Ve +.PP .Vb 2 \& void BF_encrypt(BF_LONG *data,const BF_KEY *key); \& void BF_decrypt(BF_LONG *data,const BF_KEY *key); .Ve .SH "DESCRIPTION" +.IX Header "DESCRIPTION" This library implements the Blowfish cipher, which was invented and described by Counterpane (see http://www.counterpane.com/blowfish.html ). .PP Blowfish is a block cipher that operates on 64 bit (8 byte) blocks of data. It uses a variable size key, but typically, 128 bit (16 byte) keys are a considered good for strong encryption. Blowfish can be used in the same -modes as DES (see des_modes(7)). Blowfish is currently one -of the faster block ciphers. It is quite a bit faster than DES, and much -faster than IDEA or RC2. +modes as \s-1DES\s0 (see \fIdes_modes\fR\|(7)). Blowfish is currently one +of the faster block ciphers. It is quite a bit faster than \s-1DES\s0, and much +faster than \s-1IDEA\s0 or \s-1RC2\s0. .PP Blowfish consists of a key setup phase and the actual encryption or decryption phase. .PP -\fIBF_set_key()\fR sets up the \fBBF_KEY\fR \fBkey\fR using the \fBlen\fR bytes long key +\&\fIBF_set_key()\fR sets up the \fB\s-1BF_KEY\s0\fR \fBkey\fR using the \fBlen\fR bytes long key at \fBdata\fR. .PP -\fIBF_ecb_encrypt()\fR is the basic Blowfish encryption and decryption function. +\&\fIBF_ecb_encrypt()\fR is the basic Blowfish encryption and decryption function. It encrypts or decrypts the first 64 bits of \fBin\fR using the key \fBkey\fR, -putting the result in \fBout\fR. \fBenc\fR decides if encryption (\fBBF_ENCRYPT\fR) -or decryption (\fBBF_DECRYPT\fR) shall be performed. The vector pointed at by -\fBin\fR and \fBout\fR must be 64 bits in length, no less. If they are larger, +putting the result in \fBout\fR. \fBenc\fR decides if encryption (\fB\s-1BF_ENCRYPT\s0\fR) +or decryption (\fB\s-1BF_DECRYPT\s0\fR) shall be performed. The vector pointed at by +\&\fBin\fR and \fBout\fR must be 64 bits in length, no less. If they are larger, everything after the first 64 bits is ignored. .PP The mode functions \fIBF_cbc_encrypt()\fR, \fIBF_cfb64_encrypt()\fR and \fIBF_ofb64_encrypt()\fR all operate on variable length data. They all take an initialization vector -\fBivec\fR which needs to be passed along into the next call of the same function +\&\fBivec\fR which needs to be passed along into the next call of the same function for the same message. \fBivec\fR may be initialized with anything, but the recipient needs to know what it was initialized with, or it won't be able -to decrypt. Some programs and protocols simplify this, like SSH, where -\fBivec\fR is simply initialized to zero. -\fIBF_cbc_encrypt()\fR operates on data that is a multiple of 8 bytes long, while -\fIBF_cfb64_encrypt()\fR and \fIBF_ofb64_encrypt()\fR are used to encrypt an variable +to decrypt. Some programs and protocols simplify this, like \s-1SSH\s0, where +\&\fBivec\fR is simply initialized to zero. +\&\fIBF_cbc_encrypt()\fR operates on data that is a multiple of 8 bytes long, while +\&\fIBF_cfb64_encrypt()\fR and \fIBF_ofb64_encrypt()\fR are used to encrypt an variable number of bytes (the amount does not have to be an exact multiple of 8). The purpose of the latter two is to simulate stream ciphers, and therefore, they need the parameter \fBnum\fR, which is a pointer to an integer where the current offset in \fBivec\fR is stored between calls. This integer must be initialized to zero when \fBivec\fR is initialized. .PP -\fIBF_cbc_encrypt()\fR is the Cipher Block Chaining function for Blowfish. It +\&\fIBF_cbc_encrypt()\fR is the Cipher Block Chaining function for Blowfish. It encrypts or decrypts the 64 bits chunks of \fBin\fR using the key \fBschedule\fR, -putting the result in \fBout\fR. \fBenc\fR decides if encryption (BF_ENCRYPT) or -decryption (BF_DECRYPT) shall be performed. \fBivec\fR must point at an 8 byte +putting the result in \fBout\fR. \fBenc\fR decides if encryption (\s-1BF_ENCRYPT\s0) or +decryption (\s-1BF_DECRYPT\s0) shall be performed. \fBivec\fR must point at an 8 byte long initialization vector. .PP -\fIBF_cfb64_encrypt()\fR is the CFB mode for Blowfish with 64 bit feedback. +\&\fIBF_cfb64_encrypt()\fR is the \s-1CFB\s0 mode for Blowfish with 64 bit feedback. It encrypts or decrypts the bytes in \fBin\fR using the key \fBschedule\fR, -putting the result in \fBout\fR. \fBenc\fR decides if encryption (\fBBF_ENCRYPT\fR) -or decryption (\fBBF_DECRYPT\fR) shall be performed. \fBivec\fR must point at an +putting the result in \fBout\fR. \fBenc\fR decides if encryption (\fB\s-1BF_ENCRYPT\s0\fR) +or decryption (\fB\s-1BF_DECRYPT\s0\fR) shall be performed. \fBivec\fR must point at an 8 byte long initialization vector. \fBnum\fR must point at an integer which must be initially zero. .PP -\fIBF_ofb64_encrypt()\fR is the OFB mode for Blowfish with 64 bit feedback. +\&\fIBF_ofb64_encrypt()\fR is the \s-1OFB\s0 mode for Blowfish with 64 bit feedback. It uses the same parameters as \fIBF_cfb64_encrypt()\fR, which must be initialized the same way. .PP -\fIBF_encrypt()\fR and \fIBF_decrypt()\fR are the lowest level functions for Blowfish +\&\fIBF_encrypt()\fR and \fIBF_decrypt()\fR are the lowest level functions for Blowfish encryption. They encrypt/decrypt the first 64 bits of the vector pointed by -\fBdata\fR, using the key \fBkey\fR. These functions should not be used unless you -implement \*(L'modes\*(R' of Blowfish. The alternative is to use \fIBF_ecb_encrypt()\fR. +\&\fBdata\fR, using the key \fBkey\fR. These functions should not be used unless you +implement 'modes' of Blowfish. The alternative is to use \fIBF_ecb_encrypt()\fR. If you still want to use these functions, you should be aware that they take -each 32-bit chunk in host-byte order, which is little-endian on little-endian +each 32\-bit chunk in host-byte order, which is little-endian on little-endian platforms and big-endian on big-endian ones. .SH "RETURN VALUES" +.IX Header "RETURN VALUES" None of the functions presented here return any value. .SH "NOTE" +.IX Header "NOTE" Applications should use the higher level functions -EVP_EncryptInit(3) etc. instead of calling the +\&\fIEVP_EncryptInit\fR\|(3) etc. instead of calling the blowfish functions directly. .SH "SEE ALSO" -des_modes(7) -.SH "HISTORY" -The Blowfish functions are available in all versions of SSLeay and OpenSSL. - -.rn }` '' -.IX Title "blowfish 3" -.IX Name "blowfish, BF_set_key, BF_encrypt, BF_decrypt, BF_ecb_encrypt, BF_cbc_encrypt, -BF_cfb64_encrypt, BF_ofb64_encrypt, BF_options - Blowfish encryption" - -.IX Header "NAME" - -.IX Header "SYNOPSIS" - -.IX Header "DESCRIPTION" - -.IX Header "RETURN VALUES" - -.IX Header "NOTE" - .IX Header "SEE ALSO" - +\&\fIdes_modes\fR\|(7) +.SH "HISTORY" .IX Header "HISTORY" - +The Blowfish functions are available in all versions of SSLeay and OpenSSL.