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the callback function is not called by PEM_read_PrivateKey
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jackz...@gmail.com
May 12, 2017, 12:12:11 AM5/12/17
to
Hi there,
I encountered a problem with PEM_read_PrivateKey that did not call the password callback function I passed into.
the pseudo code is like this:
static int pass_cb(char* buf, int size, int rwflag, void* u){
int len = strlen((const char*)u);
memcpy(buf, u, len);
return len;
}
EVP_PKEY pkey = PEM_read_PrivateKey(fp, NULL, pass_cb, "password");
the code above works if no password set in the private key pem file. But when I set the password it fails to read and return NULL. What I confuse is the callback function is never called.
How can I solve it? Thanks in advance.
The way of generating the private key pem file is:
openssl genrsa -des3 -out XXXX 2048
I encountered a problem with PEM_read_PrivateKey that did not call the password callback function I passed into.
the pseudo code is like this:
static int pass_cb(char* buf, int size, int rwflag, void* u){
int len = strlen((const char*)u);
memcpy(buf, u, len);
return len;
}
EVP_PKEY pkey = PEM_read_PrivateKey(fp, NULL, pass_cb, "password");
the code above works if no password set in the private key pem file. But when I set the password it fails to read and return NULL. What I confuse is the callback function is never called.
How can I solve it? Thanks in advance.
The way of generating the private key pem file is:
openssl genrsa -des3 -out XXXX 2048
Jack Huang
May 16, 2017, 12:07:11 AM5/16/17
to
The reason that callback function does not work is that I did not call to load the algorithm. After I added to call OpenSSL_add_all_algorithm function, the callback function was called.
I found that the answer always in the source code of openssl.
Robert Rodriguez
Jul 19, 2023, 7:25:15 AM7/19/23
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Breaking Bad
Jul 19, 2023, 12:35:55 PM7/19/23
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