Category "sha"

Is there a way to get validity (notAfter) from a openssl certificate fingerprint and no certificate?

Is there a way I can determine when a particular certificate fingerprint without having the certificate itself? something like OpenSSL::X509::Certificate.new("-

How can I compare a file's SHA256 hash in PowerShell to a known value?

If I've downloaded a file with a known SHA256 hash, how can I use PowerShell to check that the file matches the expected hash?

How was the initial hash value (H(0)) of SHA-224 obtained?

RFC 6234: US Secure Hash Algorithms (SHA and SHA-based HMAC and HKDF) explains only how the initial hash values (H(0)) for SHA-256, SHA-384, and SHA-512 were ob

Fast hash function with collision possibility near SHA-1

I'm using SHA-1 to detect duplicates in a program handling files. It is not required to be cryptographic strong and may be reversible. I found this list of fast