Hello Openssl users,
Am facing following issue while am loading ECDSA private key using
EVP_PKCS82PKEY().
I hope am missing some initialization in this regard. Can you please point
me what am i doing wrong.
Steps followed :
Have generated CSR and signed using openssl commans.
Following are the parameters updated in the certificate.
Certificate:
Data:
Version: 3 (0x2)
Serial Number: 6 (0x6)
Signature Algorithm: ecdsa-with-SHA256
Issuer: CN=ecdsa
Validity
Not Before: Feb 2 06:00:29 2015 GMT
Not After : Feb 2 06:00:29 2016 GMT
Subject: CN=eccert
Subject Public Key Info:
Public Key Algorithm: id-ecPublicKey
Public-Key: (256 bit)
pub:
ASN1 OID: prime256v1
X509v3 extensions:
X509v3 Subject Key Identifier:
X509v3 Authority Key Identifier:
X509v3 Key Usage: critical
Digital Signature
Signature Algorithm: ecdsa-with-SHA256
Step 2 : Tried to convert the private key in to PKCS8 format.
Step 3 : Tried to call "EVP_PKCS82PKEY(pkey)".
This function is always returning NULL.
When further checked on the return types, i could see following.
As part of "PKCS8_pkey_get0(&algoid, NULL, NULL, NULL, p8)", the type is of
V_ASN1_OCTET_STRING. (i.e. p8->pkey->type == V_ASN1_OCTET_STRING).
But OBJ_obj2nid(algoid) returning the nid value as 0 i.e. NID_undef.
Due to this, EVP_PKEY_set_type(pkey, OBJ_obj2nid(algoid)) always returns
NULL.
Can you help me to get out of this error.
Thanks,
Rajeswari.
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