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Sets the purpose of the context. See Store#purpose=.

Verifies the signature of the certificate, with the public key key. key must be an instance of OpenSSL::PKey.

Checks that cert signature is made with PRIVversion of this PUBLIC ‘key’

Parameters

• key - the public key to be used for verifying the SPKI signature

Returns true if the signature is valid, false otherwise. To verify an SPKI, the public key contained within the SPKI should be used.

Verifies this request using the given certificates and store. certificates is an array of OpenSSL::X509::Certificate, store is an OpenSSL::X509::Store.

Note that false is returned if the request does not have a signature. Use signed? to check whether the request is signed or not.

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?

Sets the store’s purpose to purpose. If specified, the verifications on the store will check every untrusted certificate’s extensions are consistent with the purpose. The purpose is specified by constants:

• X509::PURPOSE_SSL_CLIENT

• X509::PURPOSE_SSL_SERVER

• X509::PURPOSE_NS_SSL_SERVER

• X509::PURPOSE_SMIME_SIGN

• X509::PURPOSE_SMIME_ENCRYPT

• X509::PURPOSE_CRL_SIGN

• X509::PURPOSE_ANY

• X509::PURPOSE_OCSP_HELPER

• X509::PURPOSE_TIMESTAMP_SIGN