本文整理匯總了Java中java.security.Signature.initVerify方法的典型用法代碼示例。如果您正苦於以下問題：Java Signature.initVerify方法的具體用法？Java Signature.initVerify怎麽用？Java Signature.initVerify使用的例子？那麽恭喜您, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類java.security.Signature的用法示例。

在下文中一共展示了Signature.initVerify方法的20個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於我們的係統推薦出更棒的Java代碼示例。

示例1: signatureTest

​點讚 4

​

import java.security.Signature; //導入方法依賴的package包/類

private void signatureTest(ValueSigner signer, KeyPairGenerator generator) throws Exception {

byte[] data = "HELLO".getBytes();

Signature signature = signer.getInstance(null);

KeyPair pair = generator.generateKeyPair();

signature.initSign(pair.getPrivate());

signature.update(data);

byte[] digest = signature.sign();

assertThat("digest has a value", TestUtils.wrap(digest), is(not(emptyArray())));

signature.initVerify(pair.getPublic());

signature.update(data);

assertThat("verification succeeds", signature.verify(digest), is(true));

switch (signer) {

case RSA_PKCS1:

break;

default:

signature.initSign(pair.getPrivate());

signature.update(data);

assertThat("signatures correctly use random padding", signature.sign(), not(equalTo(digest)));

}

}

開發者ID:mit-ll，項目名稱:PACE，代碼行數:26，

示例2: verifyKeyBlock

​點讚 3

​

import java.security.Signature; //導入方法依賴的package包/類

public static boolean

verifyKeyBlock(

byte[]request,

byte[]signature )

{

try{

Signatureverifier = Signature.getInstance("MD5withRSA" );

verifier.initVerify( key_block_public_key );

verifier.update( request );

if ( !verifier.verify( signature )){

return( false );

}

return( true );

}catch( Throwable e ){

return( false );

}

}

開發者ID:BiglySoftware，項目名稱:BiglyBT，代碼行數:25，

示例3: verify

​點讚 3

​

import java.security.Signature; //導入方法依賴的package包/類

/**

* 校驗數字簽名

*

* @param data

* 加密數據

* @param publicKey

* 公鑰

* @param sign

* 數字簽名

*

* @return 校驗成功返回true 失敗返回false

* @throws Exception

*

*/

public static boolean verify(byte[] data, String publicKey, String sign) throws Exception {

// 解密由base64編碼的公鑰

byte[] keyBytes = decryptBASE64(publicKey);

// 構造X509EncodedKeySpec對象

X509EncodedKeySpec keySpec = new X509EncodedKeySpec(keyBytes);

// KEY_ALGORITHM 指定的加密算法

KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);

// 取公鑰匙對象

PublicKey pubKey = keyFactory.generatePublic(keySpec);

Signature signature = Signature.getInstance(SIGNATURE_ALGORITHM);

signature.initVerify(pubKey);

signature.update(data);

// 驗證簽名是否正常

return signature.verify(decryptBASE64(sign));

}

開發者ID:wooui，項目名稱:springboot-training，代碼行數:36，

示例4: verifySignature

​點讚 3

​

import java.security.Signature; //導入方法依賴的package包/類

private boolean verifySignature(byte[] signingInput, byte[] signature, PublicKey publicKey)

{

try

{

Signature verifier = Signature.getInstance("SHA256withRSA");

verifier.initVerify(publicKey);

verifier.update(signingInput);

return verifier.verify(signature);

}

catch (Exception e)

{

throw new RuntimeException("Unable to validate JWT signature", e);

}

}

開發者ID:curityio，項目名稱:oauth-filter-for-java，代碼行數:17，

示例5: verify

​點讚 3

​

import java.security.Signature; //導入方法依賴的package包/類

/**

* 校驗數字簽名

*

* @param data 加密數據

* @param publicKey 公鑰

* @param sign 數字簽名

* @return

* @throws Exception

*/

public static boolean verify(byte[] data, String publicKey, String sign) throws Exception {

//解密公鑰

byte[] keyBytes = Base64.decode(publicKey.getBytes(), Base64.DEFAULT);

//構造X509EncodedKeySpec對象

X509EncodedKeySpec x509EncodedKeySpec = new X509EncodedKeySpec(keyBytes);

//指定加密算法

KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);

//取公鑰匙對象

PublicKey publicKey2 = keyFactory.generatePublic(x509EncodedKeySpec);

Signature signature = Signature.getInstance(SIGNATURE_ALGORITHM);

signature.initVerify(publicKey2);

signature.update(data);

//驗證簽名是否正常

return signature.verify(Base64.decode(sign, Base64.DEFAULT));

}

開發者ID:abook23，項目名稱:godlibrary，代碼行數:27，

示例6: verify

​點讚 3

​

import java.security.Signature; //導入方法依賴的package包/類

public boolean verify(String challenge) throws NoSuchAlgorithmException,

InvalidKeyException, SignatureException, NoSuchProviderException

{

if (!challenge.equals(this.challenge))

{

return false;

}

//

// Verify the signature .. shows the response was generated

// by someone who knew the associated private key

//

Signature sig = Signature.getInstance(sigAlg.getObjectId().getId(),

"BC");

sig.initVerify(pubkey);

sig.update(content.getBytes());

return sig.verify(sigBits);

}

開發者ID:Appdome，項目名稱:ipack，代碼行數:20，

示例7: createDecoder

​點讚 3

​

import java.security.Signature; //導入方法依賴的package包/類

@Override

public OneWayCodec createDecoder() throws Exception {

final Signature signature = Signature.getInstance(signatureAlgorithmName);

signature.initVerify(keyPair.getPublic());

return new OneWayCodec() {

@Override

public byte[] code(final byte[] data) throws Exception {

final int dataLen = data.length - signatureLength;

signature.update(data, 0, dataLen);

if (!signature.verify(data, dataLen, signatureLength)) {

throw new FlowStateStorageException("Invalid signature");

}

final byte[] b = new byte[dataLen];

System.arraycopy(data, 0, b, 0, dataLen);

return b;

}

};

}

開發者ID:szegedi，項目名稱:spring-web-jsflow，代碼行數:21，

示例8: validateSignBySoft

​點讚 3

​

import java.security.Signature; //導入方法依賴的package包/類

public static boolean validateSignBySoft(PublicKey publicKey,

byte[] signData, byte[] srcData) throws Exception {

Signature st = Signature.getInstance(BC_PROV_ALGORITHM_SHA1RSA, "BC");

st.initVerify(publicKey);

st.update(srcData);

return st.verify(signData);

}

開發者ID:howe，項目名稱:nutz-pay，代碼行數:8，

示例9: main

​點讚 3

​

import java.security.Signature; //導入方法依賴的package包/類

public static void main(String[] args) throws Exception {

KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("DSA");

keyPairGenerator.initialize(1024);

KeyPair keys = keyPairGenerator.generateKeyPair();

PublicKey publicKey = keys.getPublic();

byte[] sigBytes = new byte[100];

Signature signature = Signature.getInstance("SHA1withDSA");

signature.initVerify(publicKey);

try {

signature.verify(sigBytes, Integer.MAX_VALUE, 1);

} catch (IllegalArgumentException ex) {

// Expected

}

}

開發者ID:lambdalab-mirror，項目名稱:jdk8u-jdk，代碼行數:16，

示例10: verifyUserSig

​點讚 3

​

import java.security.Signature; //導入方法依賴的package包/類

@Override

public boolean verifyUserSig(String identifier, String sig)throws QCloudException {

try {

Security.addProvider(new BouncyCastleProvider());

//DeBaseUrl64 urlSig to json

Base64 decoder = new Base64();

byte [] compressBytes = Base64Url.base64DecodeUrl(sig.getBytes(Charset.forName("UTF-8")));

//Decompression

Inflater decompression = new Inflater();

decompression.setInput(compressBytes, 0, compressBytes.length);

byte [] decompressBytes = new byte [1024];

int decompressLength = decompression.inflate(decompressBytes);

decompression.end();

String jsonString = new String(Arrays.copyOfRange(decompressBytes, 0, decompressLength));

//Get TLS.Sig from json

JSONObject jsonObject= JSON.parseObject(jsonString);

String sigTLS = jsonObject.getString("TLS.sig");

//debase64 TLS.Sig to get serailString

byte[] signatureBytes = decoder.decode(sigTLS.getBytes(Charset.forName("UTF-8")));

String strSdkAppid = jsonObject.getString("TLS.sdk_appid");

String sigTime = jsonObject.getString("TLS.time");

String sigExpire = jsonObject.getString("TLS.expire_after");

if (!imConfig.getSdkAppId().equals(strSdkAppid))

{

return false;

}

if ( System.currentTimeMillis()/1000 - Long.parseLong(sigTime) > Long.parseLong(sigExpire)) {

return false;

}

//Get Serial String from json

String SerialString =

"TLS.appid_at_3rd:" + 0 + "\n" +

"TLS.account_type:" + 0 + "\n" +

"TLS.identifier:" + identifier + "\n" +

"TLS.sdk_appid:" + imConfig.getSdkAppId() + "\n" +

"TLS.time:" + sigTime + "\n" +

"TLS.expire_after:" + sigExpire + "\n";

Reader reader = new CharArrayReader(imConfig.getPublicKey().toCharArray());

PEMParser parser = new PEMParser(reader);

JcaPEMKeyConverter converter = new JcaPEMKeyConverter();

Object obj = parser.readObject();

parser.close();

PublicKey pubKeyStruct = converter.getPublicKey((SubjectPublicKeyInfo) obj);

Signature signature = Signature.getInstance("SHA256withECDSA","BC");

signature.initVerify(pubKeyStruct);

signature.update(SerialString.getBytes(Charset.forName("UTF-8")));

return signature.verify(signatureBytes);

}catch (Exception e) {

throw new QCloudException(e);

}

}

開發者ID:51wakeup，項目名稱:wakeup-qcloud-sdk，代碼行數:64，

示例11: checkSignature

​點讚 3

​

import java.security.Signature; //導入方法依賴的package包/類

private static void checkSignature(byte[] data, PublicKey pub,

PrivateKey priv, String sigalg) throws NoSuchAlgorithmException,

InvalidKeyException, SignatureException, NoSuchProviderException {

Signature sig = Signature.getInstance(sigalg, PROVIDER);

sig.initSign(priv);

for (int i = 0; i < UPDATE_TIMES_HUNDRED; i++) {

sig.update(data);

}

byte[] signedData = sig.sign();

// Make sure signature verifies with original data

sig.initVerify(pub);

for (int i = 0; i < UPDATE_TIMES_HUNDRED; i++) {

sig.update(data);

}

if (!sig.verify(signedData)) {

throw new RuntimeException("Failed to verify " + sigalg

+ " signature");

}

// Make sure signature does NOT verify when the original data

// has changed

sig.initVerify(pub);

for (int i = 0; i < UPDATE_TIMES_FIFTY; i++) {

sig.update(data);

}

if (sig.verify(signedData)) {

throw new RuntimeException("Failed to detect bad " + sigalg

+ " signature");

}

}

開發者ID:lambdalab-mirror，項目名稱:jdk8u-jdk，代碼行數:33，

示例12: verifyMessage

​點讚 3

​

import java.security.Signature; //導入方法依賴的package包/類

@Override

public boolean verifyMessage(byte[] bytes, byte[] signature)

throws GeneralSecurityException {

if (bytes == null) {

throw new IllegalArgumentException("bytes must not be null");

}

if (signature == null) {

throw new IllegalArgumentException("signature must not be null");

}

if (signature.length != SIGNATURE_LENGTH_BYTES) {

return false;

}

byte[] first = new byte[signature.length / 2];

byte[] second = new byte[signature.length / 2];

System.arraycopy(signature, 0, first, 0, first.length);

System.arraycopy(signature, first.length, second, 0, second.length);

BigInteger r = new BigInteger(Utils.byte2Hex(first), 16);

BigInteger s = new BigInteger(Utils.byte2Hex(second), 16);

// This is awful, but encoding an extra 0 byte works better on devices.

byte[] encoded = ASNUtils.encodeTwoArraysToASN1(

Utils.hex2Byte(r.toString(16), 1 + SIGNATURE_LENGTH_BYTES / 2),

Utils.hex2Byte(s.toString(16), 1 + SIGNATURE_LENGTH_BYTES / 2));

final Signature signer = Signature.getInstance(SIGNATURE_ALGORITHM);

signer.initVerify(publicKey);

signer.update(bytes);

return signer.verify(encoded);

}

開發者ID:mozilla-mobile，項目名稱:FirefoxData-android，代碼行數:29，

示例13: validateJWT

​點讚 3

​

import java.security.Signature; //導入方法依賴的package包/類

public void validateJWT(String authHeader, PublicKey publicKey) {

assertNotNull("Authorization header was not present in response", authHeader);

assertTrue("Authorization header does not contain a bearer", authHeader.startsWith("Bearer "));

StringTokenizer st = new StringTokenizer(authHeader.substring(7), ".");

assertTrue("JWT does not contain three parts", st.countTokens() == 3);

String jwtHeaderEnc = st.nextToken();

String jwtClaimsEnc = st.nextToken();

String jwtSigEnc = st.nextToken();

try {

// Decode the signature we got from the server

byte[] jwtExpectedSig = Base64Utility.decode(jwtSigEnc, true);

// Validate the signature.

Signature sig = Signature.getInstance(JWT_ALGORITHM);

sig.initVerify(publicKey);

sig.update(new String(jwtHeaderEnc + "." + jwtClaimsEnc).getBytes());

assertTrue("JWT expected and actual signatures don't match", sig.verify(jwtExpectedSig));

} catch (Base64Exception be) {

Assert.fail("Exception decoding JWT signature: " + be.toString());

} catch (Throwable t) {

System.out.println(t.toString());

t.printStackTrace(System.out);

Assert.fail("Exception validating JWT signature: " + t.toString());

}

}

開發者ID:OpenLiberty，項目名稱:sample-acmegifts，代碼行數:29，

示例14: validateSignBySoft256

​點讚 3

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import java.security.Signature; //導入方法依賴的package包/類

public static boolean validateSignBySoft256(PublicKey publicKey,

byte[] signData, byte[] srcData) throws Exception {

Signature st = Signature.getInstance(BC_PROV_ALGORITHM_SHA256RSA, "BC");

st.initVerify(publicKey);

st.update(srcData);

return st.verify(signData);

}

開發者ID:wangfei0904306，項目名稱:unionpay，代碼行數:8，

示例15: verify

​點讚 3

​

import java.security.Signature; //導入方法依賴的package包/類

private boolean verify(byte[] signature, byte[] message)

throws GeneralSecurityException {

if (publicKey == null) {

throw new IllegalStateException("need to set public key with " +

" OAuthConsumer.setProperty when " +

"verifying RSA-SHA1 signatures.");

}

Signature verifier = Signature.getInstance("SHA1withRSA");

verifier.initVerify(publicKey);

verifier.update(message);

return verifier.verify(signature);

}

開發者ID:lamsfoundation，項目名稱:lams，代碼行數:13，

示例16: verify

​點讚 3

​

import java.security.Signature; //導入方法依賴的package包/類

/**

* 校驗數字簽名

*

* @param data 加密數據

* @param publicKey 公鑰

* @param sign 數字簽名

* @return

* @throws Exception

*/

public static boolean verify(byte[] data, String publicKey, String sign) throws Exception {

byte[] keyBytes = BASE64.decode(publicKey); // 解密由base64編碼的公鑰

X509EncodedKeySpec keySpec = new X509EncodedKeySpec(keyBytes); // 構造X509EncodedKeySpec對象

KeyFactory keyFactory = KeyFactory.getInstance(CipherType.RSA.getType()); // KEY_ALGORITHM 指定的加密算法

PublicKey pubKey = keyFactory.generatePublic(keySpec); // 取公鑰對象

Signature signature = Signature.getInstance(SIGNATURE_ALGORITHM);

signature.initVerify(pubKey);

signature.update(data);

return signature.verify(BASE64.decode(sign));

}

開發者ID:jeasinlee，項目名稱:AndroidBasicLibs，代碼行數:23，

示例17: PKCS10

​點讚 2

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import java.security.Signature; //導入方法依賴的package包/類

/**

* Parses an encoded, signed PKCS #10 certificate request, verifying

* the request's signature as it does so. This constructor would

* typically be used by a Certificate Authority, from which a new

* certificate would then be constructed.

*

* @param data the DER-encoded PKCS #10 request.

* @exception IOException for low level errors reading the data

* @exception SignatureException when the signature is invalid

* @exception NoSuchAlgorithmException when the signature

* algorithm is not supported in this environment

*/

public PKCS10(byte[] data)

throws IOException, SignatureException, NoSuchAlgorithmException {

DerInputStream in;

DerValue[] seq;

AlgorithmId id;

byte[] sigData;

Signature sig;

encoded = data;

//

// Outer sequence: request, signature algorithm, signature.

// Parse, and prepare to verify later.

//

in = new DerInputStream(data);

seq = in.getSequence(3);

if (seq.length != 3)

throw new IllegalArgumentException("not a PKCS #10 request");

data = seq[0].toByteArray(); // reusing this variable

id = AlgorithmId.parse(seq[1]);

sigData = seq[2].getBitString();

//

// Inner sequence: version, name, key, attributes

//

BigInteger serial;

DerValue val;

serial = seq[0].data.getBigInteger();

if (!serial.equals(BigInteger.ZERO))

throw new IllegalArgumentException("not PKCS #10 v1");

subject = new X500Name(seq[0].data);

subjectPublicKeyInfo = X509Key.parse(seq[0].data.getDerValue());

// Cope with a somewhat common illegal PKCS #10 format

if (seq[0].data.available() != 0)

attributeSet = new PKCS10Attributes(seq[0].data);

else

attributeSet = new PKCS10Attributes();

if (seq[0].data.available() != 0)

throw new IllegalArgumentException("illegal PKCS #10 data");

//

// OK, we parsed it all ... validate the signature using the

// key and signature algorithm we found.

//

try {

sigAlg = id.getName();

sig = Signature.getInstance(sigAlg);

sig.initVerify(subjectPublicKeyInfo);

sig.update(data);

if (!sig.verify(sigData))

throw new SignatureException("Invalid PKCS #10 signature");

} catch (InvalidKeyException e) {

throw new SignatureException("invalid key");

}

}

開發者ID:AdoptOpenJDK，項目名稱:openjdk-jdk10，代碼行數:74，

示例18: execute0

​點讚 2

​

import java.security.Signature; //導入方法依賴的package包/類

@Override

protected Object execute0() throws Exception {

KeyStore ks = KeyStore.getInstance("PKCS11", XiSecurityConstants.PROVIDER_NAME_XIPKI);

ks.load(null, null);

if (verbose.booleanValue()) {

println("available aliases:");

Enumeration> aliases = ks.aliases();

while (aliases.hasMoreElements()) {

String alias2 = (String) aliases.nextElement();

println(" " + alias2);

}

}

String alias = getAlias();

println("alias: " + alias);

PrivateKey key = (PrivateKey) ks.getKey(alias, null);

if (key == null) {

println("could not find key with alias '" + alias + "'");

return null;

}

Certificate cert = ks.getCertificate(alias);

if (cert == null) {

println("could not find certificate to verify signature");

return null;

}

PublicKey pubKey = cert.getPublicKey();

String sigAlgo = getSignatureAlgo(pubKey);

println("signature algorithm: " + sigAlgo);

Signature sig = Signature.getInstance(sigAlgo, XiSecurityConstants.PROVIDER_NAME_XIPKI);

sig.initSign(key);

byte[] data = new byte[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

sig.update(data);

byte[] signature = sig.sign(); // CHECKSTYLE:SKIP

println("signature created successfully");

Signature ver = Signature.getInstance(sigAlgo, "BC");

ver.initVerify(pubKey);

ver.update(data);

boolean valid = ver.verify(signature);

println("signature valid: " + valid);

return null;

}

開發者ID:xipki，項目名稱:xitk，代碼行數:46，

示例19: signAlias

​點讚 2

​

import java.security.Signature; //導入方法依賴的package包/類

private static int signAlias(int testnum, String alias) throws Exception {

if (ks == null) {

ks = KeyStore.getInstance(KS_TYPE, provider);

ks.load(null, tokenPwd);

}

if (alias == null) {

Enumeration enu = ks.aliases();

if (enu.hasMoreElements()) {

alias = (String)enu.nextElement();

}

}

PrivateKey pkey = (PrivateKey)ks.getKey(alias, null);

if ("RSA".equals(pkey.getAlgorithm())) {

System.out.println("got [" + alias + "] signing key: " + pkey);

} else {

throw new SecurityException

("expected RSA, got " + pkey.getAlgorithm());

}

Signature s = Signature.getInstance("MD5WithRSA", ks.getProvider());

s.initSign(pkey);

System.out.println("initialized signature object with key");

s.update("hello".getBytes());

System.out.println("signature object updated with [hello] bytes");

byte[] signed = s.sign();

System.out.println("received signature " + signed.length +

" bytes in length");

Signature v = Signature.getInstance("MD5WithRSA", ks.getProvider());

v.initVerify(ks.getCertificate(alias));

v.update("hello".getBytes());

v.verify(signed);

System.out.println("signature verified");

System.out.println("test " + testnum++ + " passed");

return testnum;

}

開發者ID:AdoptOpenJDK，項目名稱:openjdk-jdk10，代碼行數:42，

示例20: runTest

​點讚 2

​

import java.security.Signature; //導入方法依賴的package包/類

private void runTest(OidAlgorithmPair oidAlgorithmPair, KeyPair keyPair)

throws NoSuchAlgorithmException, NoSuchProviderException,

InvalidKeyException, SignatureException {

Signature sgAlgorithm =

Signature.getInstance(oidAlgorithmPair.algorithm, provider);

Signature sgOid = Signature.getInstance(oidAlgorithmPair.oid, provider);

if (sgAlgorithm == null) {

throw new RuntimeException(String.format(

"Test failed: algorithm string %s getInstance failed.%n",

oidAlgorithmPair.algorithm));

}

if (sgOid == null) {

throw new RuntimeException(

String.format("Test failed: OID %s getInstance failed.%n",

oidAlgorithmPair.oid));

}

if (!sgAlgorithm.getAlgorithm().equals(oidAlgorithmPair.algorithm)) {

throw new RuntimeException(String.format(

"Test failed: algorithm string %s getInstance "

+ "doesn't generate expected algorithm.%n",

oidAlgorithmPair.algorithm));

}

sgAlgorithm.initSign(keyPair.getPrivate());

sgAlgorithm.update(INPUT);

sgOid.initVerify(keyPair.getPublic());

sgOid.update(INPUT);

if (!sgOid.verify(sgAlgorithm.sign())) {

throw new RuntimeException(

"Signature verification failed unexpectedly");

}

}

開發者ID:AdoptOpenJDK，項目名稱:openjdk-jdk10，代碼行數:36，

注：本文中的java.security.Signature.initVerify方法示例整理自Github/MSDocs等源碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。