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Dec
14
answered Security analysis of this one time password based scheme for copy protection
Oct
1
answered How can cryptographic signatures be somehow linked to a physical signature?
Sep
23
answered How is a public/private key pair generated from a Diffe-Hellman key exchange?
Sep
21
answered Why can't we use a hash with no collision to compress data reliably?
Sep
8
answered Block cipher to encrypt 8 bytes/64 bits - Use 64 or 128 bit cipher?
Aug
14
answered Given just the hash of a file, can I verify that the file contains a specific data block?
Jul
7
answered Diffe-Helman Exchange result is always 1
Jul
1
answered How often does RSA-OAEP have a leading zero?
Jun
12
answered Why are RSA ciphertexts different for the same plaintext?
Jun
4
answered What makes SHA-2 and SHA-3 have security levels half their output hash length?
Jun
4
answered How do we know a cryptographic primitive won't fail suddenly?
May
27
answered Why don’t all AES encryption tools produce the same key from the same password?
Apr
26
answered Asymmetric cipher with multiple public keys
Apr
26
answered Password length versus hash length?
Apr
8
answered Creating unique keys with md5
Apr
3
answered Is the keystream transmitted with the ciphertext when a stream cipher is used?
Apr
2
answered Will there always be 256 collisions for the output of the MD5 hashsum function for 17-byte inputs?
Mar
17
answered Why are RSA key sizes almost always a power of two?
Mar
9
answered CTR HMAC SHA256 implementation
Mar
1
answered Twofish vs. Serpent vs. AES (or a combo)