[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[],[],null,["# Google Certificate Authority Service V1 Client - Class EcSignatureAlgorithm (2.1.1)\n\nVersion latestkeyboard_arrow_down\n\n- [2.1.1 (latest)](/php/docs/reference/cloud-security-private-ca/latest/V1.CaPool.IssuancePolicy.AllowedKeyType.EcKeyType.EcSignatureAlgorithm)\n- [2.1.0](/php/docs/reference/cloud-security-private-ca/2.1.0/V1.CaPool.IssuancePolicy.AllowedKeyType.EcKeyType.EcSignatureAlgorithm)\n- [2.0.3](/php/docs/reference/cloud-security-private-ca/2.0.3/V1.CaPool.IssuancePolicy.AllowedKeyType.EcKeyType.EcSignatureAlgorithm)\n- [1.7.3](/php/docs/reference/cloud-security-private-ca/1.7.3/V1.CaPool.IssuancePolicy.AllowedKeyType.EcKeyType.EcSignatureAlgorithm)\n- [1.5.0](/php/docs/reference/cloud-security-private-ca/1.5.0/V1.CaPool.IssuancePolicy.AllowedKeyType.EcKeyType.EcSignatureAlgorithm)\n- [1.4.2](/php/docs/reference/cloud-security-private-ca/1.4.2/V1.CaPool.IssuancePolicy.AllowedKeyType.EcKeyType.EcSignatureAlgorithm)\n- [1.3.1](/php/docs/reference/cloud-security-private-ca/1.3.1/V1.CaPool.IssuancePolicy.AllowedKeyType.EcKeyType.EcSignatureAlgorithm)\n- [1.2.2](/php/docs/reference/cloud-security-private-ca/1.2.2/V1.CaPool.IssuancePolicy.AllowedKeyType.EcKeyType.EcSignatureAlgorithm)\n- [1.1.0](/php/docs/reference/cloud-security-private-ca/1.1.0/V1.CaPool.IssuancePolicy.AllowedKeyType.EcKeyType.EcSignatureAlgorithm)\n- [1.0.3](/php/docs/reference/cloud-security-private-ca/1.0.3/V1.CaPool.IssuancePolicy.AllowedKeyType.EcKeyType.EcSignatureAlgorithm) \nReference documentation and code samples for the Google Certificate Authority Service V1 Client class EcSignatureAlgorithm.\n\nDescribes an elliptic curve-based signature algorithm that may be\nused in a\n[Certificate](/php/docs/reference/cloud-security-private-ca/latest/V1.Certificate) issued\nfrom a [CaPool](/php/docs/reference/cloud-security-private-ca/latest/V1.CaPool).\n\nProtobuf type `google.cloud.security.privateca.v1.CaPool.IssuancePolicy.AllowedKeyType.EcKeyType.EcSignatureAlgorithm`\n\nNamespace\n---------\n\nGoogle \\\\ Cloud \\\\ Security \\\\ PrivateCA \\\\ V1 \\\\ CaPool \\\\ IssuancePolicy \\\\ AllowedKeyType \\\\ EcKeyType\n\nMethods\n-------\n\n### static::name\n\n### static::value\n\nConstants\n---------\n\n### EC_SIGNATURE_ALGORITHM_UNSPECIFIED\n\n Value: 0\n\nNot specified. Signifies that any signature algorithm may be used.\n\nGenerated from protobuf enum `EC_SIGNATURE_ALGORITHM_UNSPECIFIED = 0;`\n\n### ECDSA_P256\n\n Value: 1\n\nRefers to the Elliptic Curve Digital Signature Algorithm over the\nNIST P-256 curve.\n\nGenerated from protobuf enum `ECDSA_P256 = 1;`\n\n### ECDSA_P384\n\n Value: 2\n\nRefers to the Elliptic Curve Digital Signature Algorithm over the\nNIST P-384 curve.\n\nGenerated from protobuf enum `ECDSA_P384 = 2;`\n\n### EDDSA_25519\n\n Value: 3\n\nRefers to the Edwards-curve Digital Signature Algorithm over curve\n25519, as described in RFC 8410.\n\nGenerated from protobuf enum `EDDSA_25519 = 3;`"]]