签名和验签流程 下面是SM2P256V1的签名和验签的流程示意图: BobAliceBobAlice生成密钥对使用公钥加密数据并签名使用公钥验签数据 Java代码示例 签名 importorg.bouncycastle.jce.provider.BouncyCastleProvider;importorg.bouncycastle.jce.ECNamedCurveTable;importorg.bouncycastle.jce.spec.ECParameterSpec;importorg.bouncycast...
#!/bin/bash ## SM CA gmssl genpkey -algorithm EC -pkeyopt ec_paramgen_curve:sm2p256v1 -out ca-gm-key.pem gmssl req -x509 -new -nodes -key ca-gm-key.pem -subj "/CN=myca.com" -days 5000 -out ca-gm-cert.pem ### server: sign key and cert gmssl genpkey -algorithm EC -pke...
keyType) { case ECDSA: case SM2: BCECPrivateKey pri = (BCECPrivateKey) this.privateKey; String curveName = Curve.valueOf(pri.getParameters().getCurve()).toString(); byte[] d = new byte[32]; if (pri.getD().toByteArray().length == 33) { System.arraycopy(pri.getD().to...
Snippet below demonstrates performing 10000 ECDH key agreements, using the curve namesecp256r1(-cn, the difference between the-cnoption and the-ncoption is that the latter looks up the curve in ECTester's database and passes the parameters to the library explicitly, while the former passes th...
Signature algorithm ALG_ECDSA_SHA_256 generates a 32-byte SHA-256 digest and signs/verifies the digest using ECDSA with the curve defined in the ECKey parameters - such as the P-256 curve specified in the Digital Signature Standards specification[NIST FIPS PUB 186-2]. ALG_ECDSA_SHA_384 -...
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isEdwardsCurve(curveOid)) { throw new P11TokenException("unknown curve " + curveOid.getId()); } keypair = KeyUtil.generateEdECKeypair(curveOid, random); } catch (NoSuchAlgorithmException | NoSuchProviderException | InvalidAlgorithmParameterException ex) { throw new P11TokenException(ex.get...
{Patternp=Pattern.compile("(-?\d+)(?:.(\d+)?)?0*(?:e(-?\d+))?");Matcherm=p.matcher(s);if(!m.matches()){thrownewIllegalArgumentException("Unknown format '"+s+"'");}// this translates 23.123e5 to 25,123 / 1000 * 10^5 = 2,512,300 / 1 (GCD)Stringwhole=m.group(1...
("Unknown curve OID: " + curveId); } ECNamedCurveParameterSpec sp = ECNamedCurveTable.getParameterSpec(curveName); ECParameterSpec params = new ECNamedCurveSpec(sp.getName(), sp.getCurve(), sp.getG(), sp.getN(), sp.getH()); ECPrivateKeySpec pkSpec = new ECPrivateKeySpec(ecPrivate...
<li>Sidney Markowitz <sidney@sidney.com> - fixing null pointed exception on unknown OID in X509Name class, initial implementation of the three AES engines.</li> <li>Chris Kerr <ckerr@filonet.ca> - initial implementation of the cms, asn1.cms, and the mail/smim...