---
name: pkcrack
version: 1.2.2
origin: security/pkcrack
comment: Utility for breaking pkzip encryption
arch: freebsd:9:x86:64
www: http://www.unix-ag.uni-kl.de/~conrad/krypto/pkcrack.html
maintainer: ehaupt@FreeBSD.org
prefix: /usr/local
licenselogic: single
flatsize: 178101
desc: "This package implements an algorithm for breaking the PkZip cipher that was\ndevised
  by Eli Biham and Paul Kocher.\n\nThis program applies a known plaintext attack to
  an encrypted file.\nA known-plaintext-attack recovers a password using the encrypted
  file and\n(part of) the unencrypted file.\n\nPlease note that cryptographers use
  the word 'plaintext' for any kind of\nunencrypted data - not necessarily readable
  ASCII text.\n\nBefore you ask why somebody may want to know the password when he
  already knows\nthe plaintext think of the following situations:\n\n - Usually there's
  a large number of files in a ZIP-archive. Usually all these\n   files are encrypted
  using the same password. So if you know one of the files,\n   you can recover the
  password and decrypt the other files.\n - You need to know only a part of the plaintext
  (at least 13 bytes). Many files\n   have commonly known headers, like DOS .EXE-files.
  Knowing a reasonably long\n   header you can recover the password and decrypt the
  entire file. \n\nWWW: http://www.unix-ag.uni-kl.de/~conrad/krypto/pkcrack.html\n"
categories: [security]
options: {DOCS: on}
files:
  /usr/local/bin/pkcrack: dcc1820dd30b6ecdb4372894f11169a07a8795ed49fab9ec29a0d5e95317f842
  /usr/local/bin/pkextract: 21a3cc907dbe542fb46db5bed01501c91df51b73bf2d7af808e22d055f8ff87e
  /usr/local/bin/pkfindkey: 32b4babe6e0f9d64771aee95a8a775f012dfbd1bf2f60af120704c0f125dd7b2
  /usr/local/bin/pkmakekey: 90e8b40c4fa3683204e1313401e51efda4b5faf5136906a1f529ffc340622efe
  /usr/local/bin/zipdecrypt: 4723b4d5400aebaef1761c6e0a8420c2135788242ed96692c5a136dec4354854
  /usr/local/share/doc/pkcrack/README: 5df2d5a14dc1eb0bdc62a9b65a803baf7b6189ec0ecd9b71accc64810ae8944c
  /usr/local/share/doc/pkcrack/pkzip.ps.gz: 58429daede96de5cd23a0341d1b1272e46814d5a8f4e1453762ed2c642dc7f18
directories:
  /usr/local/share/doc/pkcrack/: n
scripts: {}
