如何在Android 9.0派中获得ECDH密钥对？
我想要ECDH密钥对(公钥和私钥)。此方法在Android 9.0派中不起作用，因为此版本中删除了安全提供商"BC“、"SC”。我尝试了下面的方法
KeyPairGenerator keyGen = KeyPairGenerator.getInstance("EC", "BC");
SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
keyGen.initialize(256, random);
KeyFactory kaif = KeyFactory.getInstance("EC", "BC");
KeyPair pair = keyGen.generateKeyPair();
PrivateKey privateKey = pair.getPrivate();
PublicKey publicKey = pair.getPublic();以下是我在使用带有bove代码的"BC“提供程序时获得的密钥，EC Private key S: 30e3def89f6aca7ab4e1e0e0367bf936955339db03a0c32c63a08293066f9423 EC Public Key X: 1675a6b1c8097f651be6f6a555ab9e5da83f03d3082041ae29111609b98594be Y: ed23f9263c6a1e8892d03a0c33ed9d8bfc5886dfe67fb7947457e3ff43baffca
方法2: Security.insertProviderAt(BouncyCastleProvider()，1)；
当我在gradle中添加弹跳城堡并尝试像上面那样启动时，输出如下: privateKey = {OpenSSLECPrivateKey@7518} "OpenSSLECPrivateKey{params={ECDSA-Parameters：(256位)\n}}“publicKey = {OpenSSLECPublicKey@7519}”公钥：(256位)\n00000000 04 5c 2c 76 23 09 41 c4 16 e2 99 ea e0 fa ed 16 |.\，v#.A.|\n00000010 52 ca 91 d2 0c fe 7f c4 94 76 54 9a 3c 49 ab a5 |R.vT
我需要这是如此简单，在可读的格式，我需要做任何转换，以获得字母数字的关键字
回答 3
Stack Overflow用户
发布于 2019-07-04 17:30:06
尝试手动添加SpongyCastle：
Security.insertProviderAt(BouncyCastleProvider(), 1);
KeyPairGenerator keyGen = KeyPairGenerator.getInstance("EC");
SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
keyGen.initialize(256, random);
KeyFactory kaif = KeyFactory.getInstance("EC");
KeyPair pair = keyGen.generateKeyPair();
PrivateKey privateKey = pair.getPrivate();
PublicKey publicKey = pair.getPublic();将以下代码添加到您的build.gradle依赖项中：
/* spongy castle */
implementation "com.madgag.spongycastle:core:1.58.0.0"
implementation "com.madgag.spongycastle:prov:1.58.0.0"确保BouncyCastleProvider()来自spongycastle
import org.spongycastle.jce.provider.BouncyCastleProvider
Stack Overflow用户
发布于 2019-07-26 06:11:25
还可以添加BouncyCastleProvider别名bcprov-jdk15on
dependencies {
// https://mvnrepository.com/artifact/org.bouncycastle
implementation "org.bouncycastle:bcprov-jdk15on:1.60"
implementation "org.bouncycastle:bcpkix-jdk15on:1.60"
}Stack Overflow用户
发布于 2019-08-09 19:36:08
删除提供程序("BC")并手动插入BouncyCastle
Security.removeProvider("BC");
Security.insertProviderAt(BouncyCastleProvider(), 1);
KeyPairGenerator keyGen = KeyPairGenerator.getInstance("EC");
SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
keyGen.initialize(256, random);
KeyFactory kaif = KeyFactory.getInstance("EC");
KeyPair pair = keyGen.generateKeyPair();
PrivateKey privateKey = pair.getPrivate();
PublicKey publicKey = pair.getPublic();将以下代码添加到您的build.gradle依赖项中：
/* Bouncy castle */
implementation 'org.bouncycastle:com.springsource.org.bouncycastle.jce:1.46.0'https://stackoverflow.com/questions/56884608
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