There are not many successful companies in cryptographic primitives market. Certicom holds many patents attached to the ECC. RSA Security probably made some profits from the patent. Are there more examples? Why do people, scientists not try to commercialize their achievements, despite the fact th...

I have seen this question on MD5 replacement for 128 bit digests. It is said numerous times that having a 128 bit digest is impossible today because finding a collision would only require $2^{64}$ operations, which is in the means of big organisations nowadays. However, I think that these answers...

Shor's algorithm shows how a quantum computer (with sufficiently many qubits) can solve the factorization problem efficiently. Also the discrete logarithm problem can be solved efficiently with such a quantum computer. Both boil down into finding the period of a certain function. Can quantum comp...