è‡ªå •è½ãªæŠ€è¡“者ã®æ—¥è¨˜ : RSAã¨ECDSAã€ç½²å生æˆã¨ç½²å検証ã©ã£ã¡ãŒé€Ÿã„？ - livedoor Blog（ブãƒã‚°ï¼‰Ruby + OpenSSLã§ç½²å Ruby + OpenSSLã§RSAã‚„ECDSAç½²åã™ã‚‹ã«ã¯ã€OpenSSLコマンドã§æ™®é€šã« PKCS#5ã®ç§˜å¯†éµã¨å…¬é–‹éµã‚’準備ã—ã¦ã“ã‚“ãªæ„Ÿã˜ã§ç½²å生æˆã€ç½²å検証ã™ã‚Œã°ãƒ¨ãƒã‚·ã€‚ # ECDSAã®ç½²åç”Ÿæˆ prvKey = OpenSSL::PKey::EC.new(File.read(PKCS#5秘密éµPEM)) hashed = OpenSSL::Digest::SHA1.digest(ç½²å対象メッセージ) sigVal = prvKey.dsa_sign_asn1(hashed) # ECDSAã®ç½²å検証 pubKey = OpenSSL::PKey::EC.new(File.read(PKCS#5公開éµPEM)) hashed = OpenSSL::Digest::SHA1.digest(data) isValid = pubKey.dsa_ver
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