调用支付宝接口开发遇到的错误

2023-08-09 16:29:01

转载于：http://nassir.iteye.com/blog/1853150

用openssl 生成的密钥老是报以下错误：

Java代码

java.security.spec.InvalidKeySpecException: java.security.InvalidKeyException: IOException : DER input, Integer tag error
at sun.security.rsa.RSAKeyFactory.engineGeneratePrivate(RSAKeyFactory.java:200)
at java.security.KeyFactory.generatePrivate(KeyFactory.java:342)
at com.qhx.component.payment.payplatform.alipay.util.RSASignature.getPrivateKey(RSASignature.java:84)
at com.qhx.component.payment.payplatform.alipay.util.RSASignature.main(RSASignature.java:161)
Caused by: java.security.InvalidKeyException: IOException : DER input, Integer tag error
at sun.security.pkcs.PKCS8Key.decode(PKCS8Key.java:344)
at sun.security.pkcs.PKCS8Key.decode(PKCS8Key.java:350)
at sun.security.rsa.RSAPrivateCrtKeyImpl.(RSAPrivateCrtKeyImpl.java:74)
at sun.security.rsa.RSAPrivateCrtKeyImpl.newKey(RSAPrivateCrtKeyImpl.java:58)
at sun.security.rsa.RSAKeyFactory.generatePrivate(RSAKeyFactory.java:299)
at sun.security.rsa.RSAKeyFactory.engineGeneratePrivate(RSAKeyFactory.java:196)
... 3 more

后来发现，原来是支付宝，生成的命令有问题，参数放错位置，害死人。

将(3) 的命令改为：

openssl pkcs8 -topk8 -nocrypt -inform PEM -in rsa_private_key.pem -outform PEM outform

完整命令：

openssl genrsa -out rsa_private_key.pem 1024

openssl rsa -in rsa_private_key.pem -pubout -out rsa_public_key.pem

3.openssl pkcs8 -topk8 -nocrypt -inform PEM -in rsa_private_key.pem -outform PEM outform

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