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Diffstat (limited to 'secure/lib/libcrypto/man/blowfish.3')
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diff --git a/secure/lib/libcrypto/man/blowfish.3 b/secure/lib/libcrypto/man/blowfish.3 deleted file mode 100644 index ff4eef9521b0..000000000000 --- a/secure/lib/libcrypto/man/blowfish.3 +++ /dev/null @@ -1,247 +0,0 @@ -.\" Automatically generated by Pod::Man version 1.15 -.\" Wed Feb 19 16:43:01 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 "blowfish 3" -.TH blowfish 3 "0.9.7a" "2003-02-19" "OpenSSL" -.UC -.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" -.IX Header "SYNOPSIS" -.Vb 1 -\& #include <openssl/blowfish.h> -.Ve -.Vb 1 -\& void BF_set_key(BF_KEY *key, int len, const unsigned char *data); -.Ve -.Vb 10 -\& void BF_ecb_encrypt(const unsigned char *in, unsigned char *out, -\& BF_KEY *key, int enc); -\& void BF_cbc_encrypt(const unsigned char *in, unsigned char *out, -\& long length, BF_KEY *schedule, unsigned char *ivec, int enc); -\& void BF_cfb64_encrypt(const unsigned char *in, unsigned char *out, -\& long length, BF_KEY *schedule, unsigned char *ivec, int *num, -\& int enc); -\& void BF_ofb64_encrypt(const unsigned char *in, unsigned char *out, -\& long length, BF_KEY *schedule, unsigned char *ivec, int *num); -\& const char *BF_options(void); -.Ve -.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 \s-1DES\s0 (see des_modes(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 \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. -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 (\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 -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 \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 -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 (\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 \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 (\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 \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 -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 '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 -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 -blowfish functions directly. -.SH "SEE ALSO" -.IX Header "SEE ALSO" -des_modes(7) -.SH "HISTORY" -.IX Header "HISTORY" -The Blowfish functions are available in all versions of SSLeay and OpenSSL. |