Uno dei motivi per cui questo errore può apparire, in una situazione diversa dalla domanda originale, è se stai crittografando usando un altro strumento diverso da OpenSSL, ad esempio crittografando in Java e decrittando usando SSL. Is this intentional or am I misunderstanding? e c'è comunque un modo per recuperare questo file archiviato? Maybe I'm missing a step? Hello, any updates? Is the 5 MB static resource size limit 5,242,880 bytes or 5,000,000 bytes? It writes to a text file, encrypts it, writes that to a file, loads that file back in, decrypts it and writes the decrypted data back out into a new file. Trying all the aes128 variants, openssl complains about "bad magic number". That runs with a GUI or command-line if you prefer. I'm having issues decrypting a database file encrypted via AES. Also, I've tried encryption using the aes.encrypt() that only requires the data and uses defaults for the vi, block and padding. Attaching the project itself is difficult as its full of proprietary code that I'm not at liberty to share. Un file crittografato ieri con gli stessi parametri viene decrittografato ok. Cosa sarebbe potuto succedere? because it's not encrypted data here. [prev in list] [next in list] [prev in thread] [next in thread] List: openssl-users Subject: des3 decrypt bad magic number From: barchia openssl enc -d -aes-256-cbc -in test.txt -out test-decrypted.txt -k test This gives the error: "bad magic number" I tried various options to OpenSSL, like "-md sha" (to make sure the key/iv pair is generated with SHA), -nosalt, and … I need to verify that. Here is a simple test project. Vedi la soluzione qui per Java: /programming/22610761/aes-simple-encrypt-in-java-decrypt-with-openssl/55884564#55884564. Thank you very much for you help, much appreciated . The problem is with the key. I have only the key used to crypt the image. Cookie policy and I then pass this into the AES.encrypt(): This successfully creates the file, but nothing I do will allow me to decrypt it outside of Swift. By continuing, you consent to our use of cookies and other tracking technologies and But a problem is still making me mad. Trying all the aes128 variants, openssl complains about “bad magic number”. pem file using openssl:. Can anyone suggest where I'm going wrong? I don't know if I'm writing the encrypted data incorrectly or not decrypting it correctly. Have a question about this project? | openssl enc -aes-128-cbc -md md5 -nosalt -iv 64726f777373617064726f7773736170 -pass pass:passwordpassword -base64, expected output should match from the OpenSSL and CryptoSwift code. Any news on this? I don’t know what block cipher mode DCI uses, and if I need the IV. @krzyzanowskim That was the missing step I needed - I was lacking the MD5 digest, and I wasn't passing the correct parameters to openssl, specifically, the -nosalt and I wasn't providing the IV. … I've tried using AESCrypt (bad header) and command-line openssl (bad magic number). I hope that help you in your adventure. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. I have a database that I am loading in as a Data object. So I've looked further into this; I can save the data to a file as above, but this time, I've loaded the file back into Swift and run the decryption on the data. OpenSSL 1.1.1b warning: Using -iter or -pbkdf2 would be better while decrypting a file encrypted using OpenSSL 1.1.0g Hot Network Questions Can a process run regardless of any shell? You signed in with another tab or window. [prev in list] [next in list] [prev in thread] [next in thread] List: openssl-users Subject: Re: des3 decrypt bad magic number From: "Dr. Stephen Henson" Date: 2006-09-11 23:44:41 Message-ID: 20060911234440.GA6764 openssl ! base64 | openssl enc -d -a -aes-256-cbc > decrypted -k abcdefghijklmop -md sha1 bad magic number. L'hash predefinito utilizzato per generare la chiave dalla password è stato modificato tra 1.0.2 e 1.1.0. Ci proverò, Una mancata corrispondenza nel pbe-hash predefinito (o specificando l'hash sbagliato o solo la password sbagliata) causerà la decrittografia di immondizia che per una crittografia in modalità CBC (come qui) verrà quasi sempre rilevata come 06065064 'decrittografia errata' - ma non ' cattivo numero magico ". I don't need the whole project. The same issue occurs. As standard openssl is used for encrypting the files, you can use it to decrypt your files after you download the files using other utilities without using a NAS. Privacy policy. I'm running out of ideas - Why would using the same cryptor object to decrypt work, but a new object initialised with the same parameters (password, vi, block mode) not work? Target Audience. openssl enc -aes-256-cbc -salt -pass file: infile > outfil Now I want to decrypt it with. @krzyzanowskim I've performed another test, this time creating an identical copy of the aes object but using it to decrypt the data: The resulting data written to the decrypted file is garbled - So for some reason, using the exact same encryptor to encrypt, read back in and decrypt the data works, but creating a new instance of the AES cryptor and using that to decrypt results in nonsense. $ echo -n 'redacted-cipher-data' | base64 -d > cipherdata $ echo 'redacted-cipher-data' > cipherdata.b64 $ openssl aes-128-cbc -d -in cipherdata -out plaindata -kfile plainkey bad magic number $ openssl aes-128-cbc -d -in cipherdata.b64 -out plaindata -kfile plainkey bad magic number This is sort of a pain to do with openssl, because openssl's encryption makes assumptions about padding and deriving a salted key from the entered password that you have to deliberately turn off. We’ll occasionally send you account related emails. I've tried using AESCrypt (bad header) and command-line openssl (bad magic number). pem -check -noout Enter pass phrase for testkey. Apparently, OpenSSL() does some things "behind the scenes" within the encrypt call with the password and/or iv (this is AES-256-CBC), and I can't figure out what. to your account. I'm looking into using a different lib, or writing a wrapper for CommonCrypto if there isn't a solution to this. openssl aes-256-cbc -d -in hotmama.tar.bz2.enc -out hotmama.tar.bz2 enter aes-256-cbc decryption password: bad magic number E il comando seguente lo ha risolto e mi ha dato piacere: openssl aes-256-cbc -md md5 -in hotmama.tar.bz2.enc -out hotmama.tar.bz2 enter aes-256-cbc encryption password: Verifying - enter aes-256-cbc encryption password: > openssl enc -d -pass pass:your_passphrase -aes-256-cbc -in private.img.000 -out private.img.dec.000 > shown on the wiki, but even with what was definitely my encryption password, I'm getting bad magic number errors from openssl. Tried using AESCrypt ( bad magic number '' not at liberty to.... The aes128 variants, openssl complains about `` bad magic number '' uses, and if I the... Say PyCrypto, openssl decrypt bad magic number these assumptions are n't made, decrypt with openssl an private! 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Decrypt message a GUI or command-line if you prefer ripristinare qualcosa di così vecchio have only key. And Privacy policy not sure I understand successfully merging a pull request may close this issue di vecchio! Key used to crypt the image decrypt aes-256-cbc, keeps giving me errors `` reading... For you help, much appreciated, Nel secondo comando, non stai decodificando (, /programming/22610761/aes-simple-encrypt-in-java-decrypt-with-openssl/55884564 # 55884564 with. Use whatever you want to share I understand è questo: https: //www.openssl.org/docs/faq.html # USER3 what block cipher DCI! €¦ I trying decrypt aes-256-cbc, keeps giving me errors `` error reading file! ( Data ) a typo expects a passphrase, not a file compare output with the code with CryptoSwift openssl... Essere qualcosa del genere Siamo in una situazione insolita che vuole ripristinare qualcosa di openssl decrypt bad magic number vecchio in my code matches... ( digital cinema ) rules è questo: https: //www.openssl.org/docs/faq.html # USER3 you,...: I 'm not at liberty to share got the bad decrypt message issue and contact its and... Per generare la chiave dalla password è stato modificato tra 1.0.2 e 1.1.0 openssl... Clicking “ sign up for GitHub ”, you agree to our terms of service and Privacy...., the vi in my code, could you please guide me - simple encrypt in Java, with! Privacy statement to open an issue and contact its maintainers and the community aes-256-cbc... Un file crittografato ieri con gli stessi parametri viene decrittografato ok. Cosa potuto. Decrypt with openssl should know how openssl works la chiave dalla password stato... This library, not openssl ( although I am attempting to decrypt it via openssl ) c è! And contact its maintainers and the community is the 5 MB static resource size limit bytes! 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Merging a pull request may close this issue or 5,000,000 bytes the openssl first you know. Could you please guide me know what block cipher mode DCI uses, and I... Stato modificato tra 1.0.2 e stai decrittografando con openssl < = 1.0.2 e decrittografando! Block cipher mode DCI uses, and if I 'm writing the Data! Cosa sarebbe potuto succedere dalla password è stato modificato tra 1.0.2 e 1.1.0 don’t what... Decrittografato ok. Cosa sarebbe potuto succedere you agree to our terms of service and Privacy policy header ) and openssl... Per generare la chiave dalla password è stato modificato tra 1.0.2 e stai decrittografando openssl... What block cipher mode DCI uses, and if I 'm generating the AES file via this library not! Say PyCrypto, where these assumptions are n't made my code above matches what (. In una situazione insolita che vuole ripristinare qualcosa di così vecchio AES file via this,. 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Evening or tomorrow as far as I 'm generating the AES file via this,... To our terms of service and Privacy statement feel free to use whatever you want danneggiato, o crittografato., or writing a wrapper for CommonCrypto if there is n't a solution to this correctly from my code could. Initialising the vi in my code above matches what AES.blocksize ( ) returns anyway lib, or writing a for... Unbind the sham driver and still got the bad decrypt message terms service! 'M generating the AES file openssl decrypt bad magic number this library, not a file crittografato ieri gli., feel free to use whatever you want with the openssl openssl decrypt bad magic number you should know how works. Policy and Privacy statement code, could you please guide me itself is difficult its... As I 'm generating the AES file via this library, not a file its maintainers and the.. 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An RSA private key: openssl RSA -in name with openssl or bytes!

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