$ echo -n "N0w4y1n" | openssl rsa -passin stdin -in key.pem -out unencrypted.pem
unable to load Private Key
3887:error:0D0680A8:asn1 encoding routines:ASN1_CHECK_TLEN:wrong tag:tasn_dec.c:1306:
3887:error:0D07803A:asn1 encoding routines:ASN1_ITEM_EX_D2I:nested asn1 error:tasn_dec.c:380:Type=RSA
3887:error:0D09A00D:asn1 encoding routines:d2i_PrivateKey:ASN1 lib:d2i_pr.c:99:
3887:error:0907B00D:PEM routines:PEM_READ_BIO_PRIVATEKEY:ASN1 lib:pem_pkey.c:125:


$ echo -n "carbonite" | openssl rsa -passin stdin -in key.pem -out unencrypted.pem
unable to load Private Key
3890:error:06065064:digital envelope routines:EVP_DecryptFinal_ex:bad decrypt:evp_enc.c:325:
3890:error:0906A065:PEM routines:PEM_do_header:bad decrypt:pem_lib.c:425: