Add new Verification method type (#1305)

identity_verification/src/verification_method/material.rs

@@ -21,6 +21,9 @@ pub enum MethodData {
   PublicKeyBase58(String),
   /// Verification Material in the JSON Web Key format.
   PublicKeyJwk(Jwk),
+  /// Verification Material in CAIP-10 format.
+  /// [CAIP-10](https://github.com/ChainAgnostic/CAIPs/blob/main/CAIPs/caip-10.md)
+  BlockchainAccountId(String),
 }
 
 impl MethodData {
@@ -45,7 +48,7 @@ impl MethodData {
   /// represented as a vector of bytes.
   pub fn try_decode(&self) -> Result<Vec<u8>> {
     match self {
-      Self::PublicKeyJwk(_) => Err(Error::InvalidMethodDataTransformation(
+      Self::PublicKeyJwk(_) | Self::BlockchainAccountId(_) => Err(Error::InvalidMethodDataTransformation(
         "method data is not base encoded",
       )),
       Self::PublicKeyMultibase(input) => {
@@ -76,6 +79,7 @@ impl Debug for MethodData {
       Self::PublicKeyJwk(inner) => f.write_fmt(format_args!("PublicKeyJwk({inner:#?})")),
       Self::PublicKeyMultibase(inner) => f.write_fmt(format_args!("PublicKeyMultibase({inner})")),
       Self::PublicKeyBase58(inner) => f.write_fmt(format_args!("PublicKeyBase58({inner})")),
+      Self::BlockchainAccountId(inner) => f.write_fmt(format_args!("BlockchainAccountId({inner})")),
     }
   }
 }

identity_verification/src/verification_method/method_type.rs

@@ -12,6 +12,7 @@ use crate::error::Result;
 const ED25519_VERIFICATION_KEY_2018_STR: &str = "Ed25519VerificationKey2018";
 const X25519_KEY_AGREEMENT_KEY_2019_STR: &str = "X25519KeyAgreementKey2019";
 const JSON_WEB_KEY_METHOD_TYPE: &str = "JsonWebKey";
+const ECDSA_SECP256K1_RECOVERY_SIGNATURE_2020_STR: &str = "EcdsaSecp256k1RecoverySignature2020";
 
 /// verification method types.
 #[derive(Clone, Debug, Hash, PartialEq, Eq, PartialOrd, Ord, Deserialize, Serialize)]
@@ -25,6 +26,9 @@ impl MethodType {
   /// A verification method for use with JWT verification as prescribed by the [`Jwk`](::identity_jose::jwk::Jwk)
   /// in the [`publicKeyJwk`](crate::MethodData::PublicKeyJwk) entry.
   pub const JSON_WEB_KEY: Self = Self(Cow::Borrowed(JSON_WEB_KEY_METHOD_TYPE));
+  /// The `EcdsaSecp256k1RecoverySignature2020` method type.
+  pub const ECDSA_SECP256K1_RECOVERY_SIGNATURE_2020: Self =
+    Self(Cow::Borrowed(ECDSA_SECP256K1_RECOVERY_SIGNATURE_2020_STR));
 }
 
 impl MethodType {
@@ -54,6 +58,7 @@ impl FromStr for MethodType {
       ED25519_VERIFICATION_KEY_2018_STR => Ok(Self::ED25519_VERIFICATION_KEY_2018),
       X25519_KEY_AGREEMENT_KEY_2019_STR => Ok(Self::X25519_KEY_AGREEMENT_KEY_2019),
       JSON_WEB_KEY_METHOD_TYPE => Ok(Self::JSON_WEB_KEY),
+      ECDSA_SECP256K1_RECOVERY_SIGNATURE_2020_STR => Ok(Self::ECDSA_SECP256K1_RECOVERY_SIGNATURE_2020),
       _ => Ok(Self(Cow::Owned(string.to_owned()))),
     }
   }