Code translator

A crypto-converter for unambiguously converting characters of a first multi-character alphabet into characters of a second multi-character alphabet, the first alphabet containing a first number of characters and the second alphabet containing a second number of characters wherein said first number exceeds said second number, the crypto-converter system comprising:

• input circuit means for supplying multiple bit digital signals each representing a character of the first alphabet;
• means interpreting said digital signals as numerical figures for converting a pair of said characters of said first alphabet into three characters of said second alphabet in response to said second number of characters in said second alphabet;
• and
• output circuit means for supplying multiple bit digital output signals each representing a character of said second alphabet, wherein three characters of said second alphabet represent two characters of said first alphabet in a reversible manner related to said number of characters in said second alphabet.

A crypto-converter system for unambiguously converting characters of a first multi-character alphabet into characters of a second multi-character alphabet, the first alphabet containing a first number of characters and the second alphabet containing a second number of characters wherein said first number exceeds said second number and is other than an integral multiple of said second number, the cryto-converter system comprising:

• (a) input circuit means for supplying first and second digital signals representing, respectively, first and second characters (Z.sub.1, Z.sub.2) of the first multicharacter alphabet;
• (b) program controlled processor means connected to said input circuit means, the processor means interpreting said digital signals as one of a plurality of numerical figures equal in number to said first number and performing the following functions:
• (1) calculating the highest integral multiple (Q.sub.1, Q.sub.2) of said second number, and the remainder, contained in each of the numerical figures represented by the first and second digital signals, the remainders forming first and second characters (A.sub.1, A.sub.2), respectively, of the second multicharacter alphabet;
• (2) multiplying the highest integral multiple of one of the first and second characters (Q.sub.1) by a first predetermined integer and summing this product with the product of the highest integral multiple of the other of the first and second characters (Q.sub.2) and a second predetermined integer, the sum of the products forming a third character (A.sub.3) of the second multi-character alphabet;
• and,
• (3) supplying as output signals, third, fourth and fifth digital signals representing, respectively, said first, second and third characters (A.sub.1, A.sub.2, A.sub.3) of said second multi-character alphabet, the third, fourth and fifth digital signals thereby representing in the second multi-character alphabet an unambiguous, encrypted version of the first and second characters of the first multi-character alphabet.

A crypto-converter system for unambiguously converting characters of a first 128-character alphabet into characters of a second 26-character alphabet, the crypto-converter system comprising:

• (a) input circuit means for supplying first and second digital signals representing, respectively, first and second characters of the 128-character alphabet;
• (b) program controlled processor means connected to said input circuit means, the processor means interpreting said digital signals as one of 128 numerical figures and performing the following functions:
• (1) calculating the highest integral multiple of 26, and the remainder, contained in each of the numerical figures represented by the first and second digital signals, the remainders forming first and second characters, respectively, of the 26 -character alphabet;
• (2) multiplying the highest integral multiple of one of the first and second characters by 5 and summing this product with the highest integral multiple of the other of the first and second characters, the sum forming a third character of the 26-character alphabet;
• and,
• (3) supplying as output signals third, fourth and fifth digital signals representing, respectively, said first, second and third characters of said 26-character alphabet, the third, fourth and fifth digital signals thereby representing in the 26-character alphabet an unambiguous, encrypted version of the first and second characters of the 128-character alphabet.