kSecKeyAlgorithmECDSASignatureDigestRFC4754SHA1

objc2_security

Static kSecKeyAlgorithmECDSASignatureDigestRFC4754SHA1 

Source 
pub unsafe static kSecKeyAlgorithmECDSASignatureDigestRFC4754SHA1: &'static SecKeyAlgorithm
Available on crate feature SecKey only.
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Apple’s documentation