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Title: Non-standard public keys and signatures Post by: TierNolan on January 17, 2014, 02:29:30 PM Is there code that checks that public keys and signatures are canonical?
For example, a public key with a coordinate larger than the modulus or encoded with extra leading zeros or something (acceptable to openSSL but unusual). I have a memory of a non-canonical encodings being set as non-standard, but couldn't find the code. [edit] Found it, the flag SCRIPT_VERIFY_STRICTENC causes IsCanonicalPubKey to check public keys |