PEM_write_bio_PKCS8PrivateKey() and PEM_write_PKCS8PrivateKey()
write a private key in an EVP_PKEY structure in PKCS#8
EncryptedPrivateKeyInfo format using PKCS#5 v2.0 password based encryption
-algorithms. The B<cipher> argument specifies the encryption algoritm to
+algorithms. The B<cipher> argument specifies the encryption algorithm to
use: unlike all other PEM routines the encryption is applied at the
PKCS#8 level and not in the PEM headers. If B<cipher> is NULL then no
encryption is used and a PKCS#8 PrivateKeyInfo structure is used instead.