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Verifies the signature of the response using the given certificates and store. This works in the similar way as OpenSSL::OCSP::Request#verify.

Returns the serial number of the certificate for which status is being requested.

To verify the String signature, digest, an instance of OpenSSL::Digest, must be provided to re-compute the message digest of the original data, also a String. The return value is true if the signature is valid, false otherwise. A PKeyError is raised should errors occur. Any previous state of the Digest instance is irrelevant to the validation outcome, the digest instance is reset to its initial state during the operation.

Example

data = 'Sign me!'
digest = OpenSSL::Digest::SHA256.new
pkey = OpenSSL::PKey::RSA.new(2048)
signature = pkey.sign(digest, data)
pub_key = pkey.public_key
puts pub_key.verify(digest, signature, data) # => true

Indicates whether this DH instance has a private key associated with it or not. The private key may be retrieved with DH#priv_key.

Indicates whether this DSA instance has a private key associated with it or not. The private key may be retrieved with DSA#private_key.

Verifies whether the signature is valid given the message digest input. It does so by validating sig using the public key of this DSA instance.

Parameters

• digest is a message digest of the original input data to be signed

• sig is a DSA signature value

Example

dsa = OpenSSL::PKey::DSA.new(2048)
doc = "Sign me"
digest = OpenSSL::Digest::SHA1.digest(doc)
sig = dsa.syssign(digest)
puts dsa.sysverify(digest, sig) # => true

Returns whether this EC instance has a private key. The private key (BN) can be retrieved with EC#private_key.

Does this keypair contain a private key?

Performs a certificate verification on the OpenSSL::X509::Certificate cert.

chain can be an array of OpenSSL::X509::Certificate that is used to construct the certificate chain.

If a block is given, it overrides the callback set by verify_callback=.

After finishing the verification, the error information can be retrieved by error, error_string, and the resulting complete certificate chain can be retrieved by chain.

Constructs a String of the GzipFile Error

Restore session state from the session’s FileStore file.

Returns the session state as a hash.

Restore session state.

Returns session data as a hash.

Restore (empty) session state.