https://www.openssl.org/

Show error string

Normally you’ll get error:0406506C:rsa routines:func(101):reason(108), but what does it mean?

In order to show the useful error message, open terminal and type the following command

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$ openssl errstr 0406506C
error:0406506C:rsa routines:RSA_EAY_PRIVATE_DECRYPT:data greater than mod len

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