Is SHA-256 a one way permutation when restricting the domain to {0,1}^256?
11080
Are common cryptographic hashes bijective when hashing a single block of the same size as the output?
11628
What data type to use for hashed password field and what length?
136759
How many bits of hash are realistically needed for key verification?
122054
SHA-3 Sub-Function Reversibility Clarification
81889
Does Composition of compressing Collision Resistant Hash Functions $H^{*}=H_2(H_1(x))$ is Collision Resistant?
54384
Why does SHA-2 call for doing 10* padding in addition to appending the message length?
150836
Padding in Keccak SHA3 hashing algorithm
65609
Why does Java's hashCode() in String use 31 as a multiplier?
41692
Why does key generation take an input $1^k$, and how do I represent it in practice?
114578
Design properties of the Rijndael finite field?
142036
Is there a strong cryptographic reason for GCM's 2^39 - 256 bit limit?
109924
Is AES-256 a post-quantum secure cipher or not?
110024
What is the complexity of finding SHA-1 collisions?
27598
Can you create a strong blockcipher with small blocksize, given a strong blockcipher of conventional blocksize?
87736
Has a SHA256 output ever been found consisting entirely of the same character?
102786
Why are the IV (constant) values fixed for HMAC/SHA?
97141
Is any 64-bit portion of a 128-bit hash as collision-proof as a 64-bit hash?