[SOLVED] openssl 1.1.0.e-1 manual file decrypt broked error:06065064

vitaliy.kuzmich · 2017-05-04 16:55:33

openssl-1.1.0.e-1-x86_64.pkg

decrypt command : openssl enc -aes-256-cbc -salt -in bup.tar.crypt -d -out bup2.tar

error:06065064:digital envelope routines:EVP_DecryptFinal_ex:bad decrypt:crypto/evp/evp_enc.c:540

after downgrade to openssl-1.0-1.0.2.k-1-x86_64.pkg I was able to decrypt my file...

any ideas ?

Last edited by vitaliy.kuzmich (2017-05-07 09:31:50)

mpan · 2017-05-04 23:04:04

Before going to the solution, fix your command — you have invalid options there. Option -salt makes no sense for decryption and for encryption it is never necessary, as it’s default unless you set -nosalt, which you should never set under normal circumstances. So:

openssl enc -d -aes-256-cbc -in encrypted -out decrypted

As for your particular problem: OpenSSL changed message digest it uses. OpenSSL 1.0.2 still used MD5 and 1.1.0 switched to SHA256. If you have data encrypted with 1.0.2 or older, you have to specify MD5 as the digest algorithm:

openssl enc -d -aes-256-cbc -md md5 -in encrypted -out decrpted

WorMzy · 2017-05-05 05:37:08

Mod note: Not an upgrade issue, moving to Applications & DEs.

vitaliy.kuzmich · 2017-05-05 07:23:44

mpan wrote:

Before going to the solution, fix your command — you have invalid options there. Option -salt makes no sense for decryption and for encryption it is never necessary, as it’s default unless you set -nosalt, which you should never set under normal circumstances. So:
openssl enc -d -aes-256-cbc -in encrypted -out decrypted
As for your particular problem: OpenSSL changed message digest it uses. OpenSSL 1.0.2 still used MD5 and 1.1.0 switched to SHA256. If you have data encrypted with 1.0.2 or older, you have to specify MD5 as the digest algorithm:
openssl enc -d -aes-256-cbc -md md5 -in encrypted -out decrpted

it works! thanks a lot!

WorMzy · 2017-05-05 07:40:34

Remember to mark your thread as solved.

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#1 2017-05-04 16:55:33

[SOLVED] openssl 1.1.0.e-1 manual file decrypt broked error:06065064

#2 2017-05-04 23:04:04

Re: [SOLVED] openssl 1.1.0.e-1 manual file decrypt broked error:06065064

#3 2017-05-05 05:37:08

Re: [SOLVED] openssl 1.1.0.e-1 manual file decrypt broked error:06065064

#4 2017-05-05 07:23:44

Re: [SOLVED] openssl 1.1.0.e-1 manual file decrypt broked error:06065064

#5 2017-05-05 07:40:34

Re: [SOLVED] openssl 1.1.0.e-1 manual file decrypt broked error:06065064

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