Size |
Description |

pdf, 7 pp, 228 K |
*Cryptography in an Algebraic Alphabet*,
Lester S. Hill, 1929 |

pdf, 20 pp, 788 K |
*Concerning Certain Linear Transformation
Apparatus of Cryptography*, Lester S. Hill, 1931 |

pdf, 10 pp, 235 K |
*Variable Matrix Substitution in Algebraic
Cryptography*, Jack Levine, 1958 |

pdf, 4 pp, 199 K |
*Some Further Methods in Algebraic
Cryptography*, Jack Levine, 1958 |

pdf, 8 pp, 280 K |
*Some Elementary Cryptanalysis of Algebraic
Cryptography*, Jack Levine, 1961 |

pdf, 7 pp, 257 K |
*Some Applications of High-Speed Computers
to the case *n = 2* of Algebraic Cryptography*, Jack Levine,
1961 |

pdf, 79 pp, 2.6 M |
*A Mathematical Theory of Communications*,
C. E. Shannon, 1948 |

pdf, 60 pp, 2.3 M |
*Communications Theory of Secrecy
Systems*, C. E. Shannon, 1949 |