Implement the SubtleCrypto.getPublicKey method, specified at https://wicg.github.io/webcrypto-modern-algos/#SubtleCrypto-method-getPublicKey.

• SubtleCrypto.getPublicKey method script: Implement SubtleCrypto.getPublicKey method with X25519 support #43073

Currently, the specification does not explicitly state which cryptographic algorithms should support the "getPublicKey" operation. Assume it is supported by all asymmetric cryptographic algorithms. We can aim to implement the "getPublicKey" operation for the following algorithms:

• Algorithms from WebCrypto API specification (https://w3c.github.io/webcrypto/):
  • RSASSA-PKCS1-v1_5 script: Implement "getPublicKey" operations of RSA algorithms #43093
  • RSA-PSS script: Implement "getPublicKey" operations of RSA algorithms #43093
  • RSA-OAEP script: Implement "getPublicKey" operations of RSA algorithms #43093
  • ECDSA script: Implement "getPublicKey" operations of ECDSA and ECDH #43106
  • ECDH script: Implement "getPublicKey" operations of ECDSA and ECDH #43106
  • Ed25519 WebCryptoAPI: implement Ed25519 and split Handle::Ed25519 into Ed25519PrivateKey and Ed25519PublicKey #43115
  • X25519 script: Implement SubtleCrypto.getPublicKey method with X25519 support #43073
• Algorithms from Modern Algorithms in the WebCrypto API specification (https://wicg.github.io/webcrypto-modern-algos/):
  • ML-KEM¹
  • ML-DSA¹
  • SLH-DSA¹²