NAME
decrypt - Decrypts a message
SYNOPSIS
decrypt [-o|--output] [-n|--signatures] [--signer-cert] [--recipient-key] [--private-key-store] [--dump-session-key] [--session-key] [--dump] [-x|--hex] [-h|--help] [FILE]
DESCRIPTION
Decrypts a message
Decrypts a message using either supplied keys, or by prompting for a password. If message tampering is detected, an error is returned. See below for details.
If certificates are supplied using the "--signer-cert" option, any signatures that are found are checked using these certificates. Verification is only successful if there is no bad signature, and the number of successfully verified signatures reaches the threshold configured with the "--signatures" parameter.
If the signature verification fails, or if message tampering is detected, the program terminates with an exit status indicating failure. In addition to that, the last 25 MiB of the message are withheld, i.e. if the message is smaller than 25 MiB, no output is produced, and if it is larger, then the output will be truncated.
The converse operation is "sq encrypt".
OPTIONS
-o, --output=FILE
Writes to FILE or stdout if omitted
-n, --signatures=N
Sets the threshold of valid signatures to N. The message will only be considered verified if this threshold is reached. [default: 1 if at least one signer cert file is given, 0 otherwise]
--signer-cert=CERT
Verifies signatures with CERT
--recipient-key=KEY
Decrypts with KEY
--private-key-store=KEY_STORE
Provides parameters for private key store
--dump-session-key
Prints the session key to stderr
--session-key=SESSION-KEY
Decrypts an encrypted message using SESSION-KEY
|
--dump |
Prints a packet dump to stderr |
-x, --hex
Prints a hexdump (implies --dump)
-h, --help
Print help information
|
[FILE] |
Reads from FILE or stdin if omitted |
EXAMPLES
Decrypt a file using a secret key
sq decrypt --recipient-key juliet.pgp ciphertext.pgp
Decrypt a file verifying signatures
sq decrypt --recipient-key juliet.pgp --signer-cert romeo.pgp ciphertext.pgp
Decrypt a file using a password
sq decrypt ciphertext.pgp
SEE ALSO
For the full documentation see <https://docs.sequoia-pgp.org/sq/>;.
sq(1) sq-armor(1) sq-autocrypt(1) sq-certify(1) sq-dearmor(1) sq-encrypt(1) sq-inspect(1) sq-key(1) sq-keyring(1) sq-keyserver(1) sq-packet(1) sq-revoke(1) sq-sign(1) sq-verify(1) sq-wkd(1)