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egan
2018-07-24 11:02:28 +08:00
parent 7c1b5a8ae1
commit 35b7c303f8
2 changed files with 19 additions and 22 deletions
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39
pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/encrypt/RSA.java
View File

@@ -245,33 +245,30 @@ public class RSA{
public static byte[] encrypt(byte[] plainBytes, PublicKey publicKey, int keyLength, int reserveSize, String cipherAlgorithm) throws Exception {
int keyByteSize = keyLength / 8;
int encryptBlockSize = keyByteSize - reserveSize;
int length = plainBytes.length;
int nBlock = length / encryptBlockSize;
if ((length % encryptBlockSize) != 0) {
nBlock += 1;
}
Cipher cipher = Cipher.getInstance(cipherAlgorithm);
cipher.init(Cipher.ENCRYPT_MODE, publicKey);
try (ByteArrayOutputStream outbuf = new ByteArrayOutputStream(nBlock * keyByteSize)) {
for (int offset = 0; offset <length; offset += encryptBlockSize) {
int inputLen = length - offset;
if (inputLen > encryptBlockSize) {
inputLen = encryptBlockSize;
public static String encrypt(byte[] plainBytes, PublicKey publicKey, String cipherAlgorithm, String characterEncoding ) throws Exception {
Cipher cipher = Cipher.getInstance(cipherAlgorithm);
cipher.init(Cipher.DECRYPT_MODE, publicKey);
try(InputStream ins = new ByteArrayInputStream(plainBytes); ByteArrayOutputStream writer = new ByteArrayOutputStream();) {
byte[] buf = new byte[128];
int bufl;
while ((bufl = ins.read(buf)) != -1) {
byte[] block = null;
if (buf.length == bufl) {
block = buf;
} else {
block = new byte[bufl];
for (int i = 0; i < bufl; i++) {
block[i] = buf[i];
}
}
byte[] encryptedBlock = cipher.doFinal(plainBytes, offset, inputLen);
outbuf.write(encryptedBlock);
writer.write(cipher.doFinal(block));
}
outbuf.flush();
return outbuf.toByteArray();
return new String(writer.toByteArray(), characterEncoding);
}
}
public static String encrypt(String content, String publicKey, String cipherAlgorithm, String characterEncoding ) throws Exception {
return new String(RSA.encrypt(content.getBytes(Charset.forName(characterEncoding)), RSA.getPublicKey(publicKey), 1024, 11, cipherAlgorithm), characterEncoding);
return RSA.encrypt(Base64.decode(content), RSA.getPublicKey(publicKey), cipherAlgorithm, characterEncoding);
}
}

2
pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/encrypt/RSA2.java
View File

@@ -81,6 +81,6 @@ public class RSA2 {
public static String encrypt(String content, String publicKey, String cipherAlgorithm, String characterEncoding ) throws Exception {
return Base64.encode(RSA.encrypt(content.getBytes(Charset.forName(characterEncoding)), RSA.getPublicKey(publicKey), 2048, 11, cipherAlgorithm));
return RSA.encrypt(content.getBytes(Charset.forName(characterEncoding)), RSA.getPublicKey(publicKey),cipherAlgorithm, characterEncoding);
}
}