Java SHA1不包含RSA算法异常
您好,我有以下功能将应用程序中的字符串转换为私钥:Java SHA1不包含RSA算法异常,java,android,rsa,sha1,Java,Android,Rsa,Sha1,您好,我有以下功能将应用程序中的字符串转换为私钥: public static PrivateKey main() throws Exception { // Read in the key into a String StringBuilder pkcs8Lines = new StringBuilder(); BufferedReader rdr = new BufferedReader(new StringReader(PRIVATE_KEY)); Stri
public static PrivateKey main() throws Exception {
// Read in the key into a String
StringBuilder pkcs8Lines = new StringBuilder();
BufferedReader rdr = new BufferedReader(new StringReader(PRIVATE_KEY));
String line;
while ((line = rdr.readLine()) != null) {
pkcs8Lines.append(line);
}
// Remove the "BEGIN" and "END" lines, as well as any whitespace
String pkcs8Pem = pkcs8Lines.toString();
pkcs8Pem = pkcs8Pem.replaceAll("\\n+","");
// Base64 decode the result
byte [] pkcs8EncodedBytes = Base64.decode(pkcs8Pem, Base64.DEFAULT);
// extract the private key
PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(pkcs8EncodedBytes);
KeyFactory kf = KeyFactory.getInstance("SHA1WITHRSA");
PrivateKey privKey = kf.generatePrivate(keySpec);
return privKey;
}
我得到以下例外情况:
W/System.err:java.security.nosuchagorithmexception:SHA1withRSA-KeyFactory不可用
W/System.err:at java.security.KeyFactory.(KeyFactory.java:161)
位于java.security.KeyFactory.getInstance(KeyFactory.java:195)
因此,我试图通过以下代码找到我可以使用的所有AlghoritM:
TreeSet<String> algorithms = new TreeSet<>();
for (Provider provider : Security.getProviders())
for (Provider.Service service : provider.getServices())
if (service.getType().equals("Signature"))
algorithms.add(service.getAlgorithm());
for (String algorithm : algorithms)
System.out.println(algorithm);
TreeSet算法=新的TreeSet();
对于(提供程序:Security.getProviders())
对于(Provider.Service服务:Provider.getServices())
if(service.getType().equals(“签名”))
add(service.getAlgorithm());
for(字符串算法:算法)
System.out.println(算法);
在包含“SHA1withRSA”的响应中,您知道问题出在哪里吗?SHA1withRSA是一种签名类型,您可以在列表中看到,因为您
if (service.getType().equals("Signature"))
如果你把它编辑成
if (service.getType().equals("KeyFactory"))
您应该看到一个类似这样的列表
DSA
EC
RSA
RSASSA-PSS
X25519
X448
XDH
您发布的代码中没有KeyFactory,您只发布了堆栈跟踪的一部分。发布整个stacktrace。对不起,我已经更新了我的问题