query: Would SHA-256(SHA-256(x)) produce collisions?
positive_passages.docid: 123152
positive_passages.text: "Weaknesses" in SHA-256d?
negative_passages.docid: 84399
negative_passages.text: Why is plain-hash-then-encrypt not a secure MAC?
negative_passages.docid: 8869
negative_passages.text: (EC)DSA signature without hashing, or with offloaded hash?
negative_passages.docid: 97141
negative_passages.text: Is any 64-bit portion of a 128-bit hash as collision-proof as a 64-bit hash?
negative_passages.docid: 154199
negative_passages.text: Why are XOR often used in java hashCode() but another bitwise operators are used rarely?
negative_passages.docid: 53294
negative_passages.text: Why can't we reverse hashes?
negative_passages.docid: 59845
negative_passages.text: How secure is AES-256?
negative_passages.docid: 40158
negative_passages.text: Why is $H(k\mathbin\Vert x)$ not a secure MAC construction?
negative_passages.docid: 81889
negative_passages.text: Does Composition of compressing Collision Resistant Hash Functions $H^{*}=H_2(H_1(x))$ is Collision Resistant?
negative_passages.docid: 79669
negative_passages.text: SHA256 output to 0-99 number range?
negative_passages.docid: 84438
negative_passages.text: Why 'mkpasswd -m sha-512' produce different result every time it is called?
negative_passages.docid: 93307
negative_passages.text: Does each PUSH instruction push a multiple of 8 bytes on x64?
negative_passages.docid: 114962
negative_passages.text: Is there a difference between PRF and a hash function?
negative_passages.docid: 115736
negative_passages.text: What's a correct and good way to implement __hash__()?
negative_passages.docid: 42162
negative_passages.text: What is the MD5 collision with the smallest input values?
negative_passages.docid: 50029
negative_passages.text: Is it safe to use file's hash as IV?
negative_passages.docid: 110024
negative_passages.text: What is the complexity of finding SHA-1 collisions?