ExtractKeyFromPem< TAlg >()

static X509Certificate2 System.Security.Cryptography.X509Certificates.X509Certificate2.ExtractKeyFromPem< TAlg > ( ReadOnlySpan< char > keyPem, string[] labels, Func< TAlg > factory, Func< TAlg, X509Certificate2 > import )

inlinestaticprivate

Type Constraints

TAlg

:

AsymmetricAlgorithm

Definition at line 764 of file X509Certificate2.cs.

                                                                                                                                                                            : AsymmetricAlgorithm
    {
        PemEnumerator.Enumerator enumerator = new PemEnumerator(keyPem).GetEnumerator();
        while (enumerator.MoveNext())
        {
            enumerator.Current.Deconstruct(out var contents, out var pemFields);
            ReadOnlySpan<char> readOnlySpan = contents;
            PemFields pemFields2 = pemFields;
            contents = readOnlySpan;
            ReadOnlySpan<char> span = contents[pemFields2.Label];
            foreach (string text in labels)
            {
                if (span.SequenceEqual(text))
                {
                    TAlg val = factory();
                    contents = readOnlySpan;
                    val.ImportFromPem(contents[pemFields2.Location]);
                    try
                    {
                        return import(val);
                    }
                    catch (ArgumentException inner)
                    {
                        throw new CryptographicException(System.SR.Cryptography_X509_NoOrMismatchedPemKey, inner);
                    }
                }
            }
        }
        throw new CryptographicException(System.SR.Cryptography_X509_NoOrMismatchedPemKey);
    }

References System.SR.Cryptography_X509_NoOrMismatchedPemKey, Internal.Cryptography.PemEnumerator.Enumerator.Current, Internal.Cryptography.PemEnumerator.Enumerator.PemFieldItem.Deconstruct(), System.Runtime.Serialization.Dictionary, Internal.Cryptography.PemEnumerator.GetEnumerator(), and System.text.