内核返回crypto_akcipher_set_pub_key返回错误

Question

我目前正在开发一个内核模块，在其中执行RSA签名验证。公钥总是在crypto_akcipher_set_pub_key失败。

我通过python生成公共密钥，这是我的公共密钥： -----开始公钥----- MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCqPdPMzEYirodOYw / GoLyFUo547OBHm3O9 / KpF6yoW9lqiDHGUF4Hs5pk / tTElSMh2o5wtM1zuehmJHtetnoV16Sko4Fx6C0VXxUqJyg8twKvC4Cj / nmFK4ARayn5AaJRhvIMq560mfh2UotyIL6Zsi + f9Z8usuDP8MWyhM9nZGQIDAQAB ----- END公钥-----

这是我的代码：

*tfm = crypto_alloc_akcipher("rsa", 0, 0);
...
req = akcipher_request_alloc(*tfm, GFP_KERNEL);
...
err = crypto_akcipher_set_pub_key(*tfm, data, len);
if(err) {
    printk("set the public key error\n");
    akcipher_request_free(req);
    return NULL;
}

---

我遇到类似的问题：crypto_akcipher_set_pub_key in kernel asymmetric crypto always returns error

我键入命令：hereopenssl asn1parse -in 2 输出：

0:d=0  hl=3 l= 159 cons: SEQUENCE
3:d=1  hl=2 l=  13 cons: SEQUENCE
5:d=2  hl=2 l=   9 prim: OBJECT            :rsaEncryption
16:d=2  hl=2 l=   0 prim: NULL
18:d=1  hl=3 l= 141 prim: BIT STRING

然后我输入：openssl asn1parse -in 2 -strparse 18 输出：

0:d=0  hl=3 l= 137 cons: SEQUENCE
3:d=1  hl=3 l= 129 prim: INTEGER           :AA3DD3CCCC4622AE874E630FC6A0BC85528E78ECE0479B73BDFCAA45EB2A16F65AA20C71941781ECE6993FB5312548C876A39C2D335CEE7A19891ED7AD9E8575E92928E05C7A0B4557C54A89CA0F2DC0ABC2E028FF9E614AE0045ACA7E40689461BC832AE7AD267E1D94A2DC882FA66C8BE7FD67CBACB833FC316CA133D9D919
135:d=1  hl=2 l=   3 prim: INTEGER           :010001

这是我的代码：

const char *public_key="AA3DD3CCCC4622AE874E630FC6A0BC85528E78ECE0479B73BDFCAA45EB2A16F65AA20C71941781ECE6993FB5312548C876A39C2D335CEE7A19891ED7AD9E8575E92928E05C7A0B4557C54A89CA0F2DC0ABC2E028FF9E614AE0045ACA7E40689461BC832AE7AD267E1D94A2DC882FA66C8BE7FD67CBACB833FC316CA133D9D919";

但是，公钥始终在crypto_akcipher_set_pub_key处失败。

谢谢！