The math.primes.safe vocabulary implements words to calculate safe prime numbers. Safe primes are of the form p = 2q + 1, where p, q are prime. Safe primes have desirable qualities for cryptographic applications.

Testing if a number is a safe prime:

Generating safe prime numbers:

Testing if a number is a safe prime:

safe-prime? ( q -- ? )

Generating safe prime numbers:

next-safe-prime ( n -- q )

random-safe-prime ( numbits -- p )

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Factor 0.99 x86.64 (2173, heads/master-f3ee5c5979, Sep 18 2022 13:17:51)