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# Security Functions

## Topics

### Functions

[`func SecCertificateCopyNotValidAfterDate(SecCertificate) -> CFDate?`](/documentation/Security/SecCertificateCopyNotValidAfterDate(_:))

[`func SecCertificateCopyNotValidBeforeDate(SecCertificate) -> CFDate?`](/documentation/Security/SecCertificateCopyNotValidBeforeDate(_:))

[`func SecCodeCreateWithXPCMessage(xpc_object_t, SecCSFlags, UnsafeMutablePointer<SecCode?>) -> OSStatus`](/documentation/Security/SecCodeCreateWithXPCMessage(_:_:_:))

[`func SecCodeValidateFileResource(SecStaticCode, CFString, CFData, SecCSFlags) -> OSStatus`](/documentation/Security/SecCodeValidateFileResource(_:_:_:_:))

[`func SecTaskGetCodeSignStatus(SecTask) -> UInt32`](/documentation/Security/SecTaskGetCodeSignStatus(_:))

[`func SecTrustCopyCertificateChain(SecTrust) -> CFArray?`](/documentation/Security/SecTrustCopyCertificateChain(_:))

[`func SecTrustCopyKey(SecTrust) -> SecKey?`](/documentation/Security/SecTrustCopyKey(_:))


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