Initializer

init(pemRepresentation:)

Parses an RSA public key from a PEM-encoded SPKI string.

init(pemRepresentation: String) throws

Parameters

pemRepresentation: The PEM-encoded SPKI public key. The RFC 7468 framing is mandatory; whitespace around the markers and inside the base64 body is permitted.

Mentioned In

Security Considerations

Discussion

Performs outer-frame validation only: the input must be valid UTF-8 and must contain both a -----BEGIN marker and a PUBLIC KEY----- marker. The check is deliberately narrower than the private-key counterpart — a traditional PKCS#1 -----BEGIN RSA PUBLIC KEY----- header would pass the PUBLIC KEY----- substring test but is rejected by downstream consumers of pemData; normalize to SPKI before calling.

Warning

Validation is string-marker-only. A malformed SubjectPublicKeyInfo payload inside a valid PEM frame is not detected here. Future provider-backed verification will reject such inputs before use.

Throws

OpenSSLError.invalidKey(_:) if the input is not valid UTF-8 or lacks the expected frame markers.