Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions,
see Getting Started with Amazon Web Services in China
(PDF).
Verifying the signature of SSM Agent
The Amazon Systems Manager Agent (SSM Agent) deb and rpm installer packages for Linux instances
are cryptographically signed. You can use a public key to verify that the agent
package is original and unmodified. If the files are damaged or have been altered, the
verification fails. You can verify the signature of the installer package using
either RPM or GPG. The following information is for SSM Agent versions 3.1.1141.0 or
later.
The public key shown later in this topic expires on 2026-07-17 (July 15,
2026). Systems Manager will publish a new public key in this topic before the old one
expires. We encourage you to subscribe to the RSS feed for this topic to get a
notification when the new key is available.
To find the correct signature file for your instance's architecture and operating
system, see the following table.
region represents the identifier for an Amazon Web Services Region
supported by Amazon Systems Manager, such as us-east-2 for the US East (Ohio) Region. For a list of
supported region values, see the Region column in Systems Manager service endpoints in the
Amazon Web Services General Reference.
| Architecture |
Operating system |
Signature file URL |
Agent download file name |
| x86_64 |
AlmaLinux, Amazon Linux 1, Amazon Linux 2, Amazon Linux 2023, CentOS, CentOS Stream,
RHEL, Oracle Linux, Rocky Linux, SLES
|
https://s3.region.amazonaws.com/amazon-ssm-region/latest/linux_amd64/amazon-ssm-agent.rpm.sig
https://s3.amazonaws.com/ec2-downloads-windows/SSMAgent/latest/linux_amd64/amazon-ssm-agent.rpm.sig
|
amazon-ssm-agent.rpm
|
| x86_64 |
Debian Server, Ubuntu Server
|
https://s3.region.amazonaws.com/amazon-ssm-region/latest/debian_amd64/amazon-ssm-agent.deb.sig
https://s3.amazonaws.com/ec2-downloads-windows/SSMAgent/latest/debian_amd64/amazon-ssm-agent.deb.sig
|
amazon-ssm-agent.deb |
| x86 |
Amazon Linux 1, Amazon Linux 2, Amazon Linux 2023, CentOS, RHEL
|
https://s3.region.amazonaws.com/amazon-ssm-region/latest/linux_386/amazon-ssm-agent.rpm.sig
https://s3.amazonaws.com/ec2-downloads-windows/SSMAgent/latest/linux_386/amazon-ssm-agent.rpm.sig
|
amazon-ssm-agent.rpm
|
| x86 |
Ubuntu Server
|
https://s3.region.amazonaws.com/amazon-ssm-region/latest/debian_386/amazon-ssm-agent.deb.sig
https://s3.amazonaws.com/ec2-downloads-windows/SSMAgent/latest/debian_386/amazon-ssm-agent.deb.sig
|
amazon-ssm-agent.deb
|
| ARM64 |
Amazon Linux 1, Amazon Linux 2, Amazon Linux 2023, CentOS, RHEL
|
https://s3.region.amazonaws.com/amazon-ssm-region/latest/linux_arm64/amazon-ssm-agent.rpm.sig
https://s3.amazonaws.com/ec2-downloads-windows/SSMAgent/latest/linux_arm64/amazon-ssm-agent.rpm.sig
|
amazon-ssm-agent.rpm |
Before you begin
Before verifying the signature of SSM Agent, you must download the appropriate
agent package for your operating system. For example,
https://s3.amazonaws.com/ec2-downloads-windows/SSMAgent/latest/linux_arm64/amazon-ssm-agent.rpm.
For more information about downloading SSM Agent packages, see Manually installing and
uninstalling SSM Agent on EC2 instances for Linux.
- GPG
-
To verify the SSM Agent package on a Linux server
-
Copy the following public key, and save it to a file named
amazon-ssm-agent.gpg.
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v2.0.22 (GNU/Linux)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=aDkv
-----END PGP PUBLIC KEY BLOCK-----
-
Import the public key into your keyring, and note the returned
key value.
gpg --import amazon-ssm-agent.gpg
-
Verify the fingerprint. Be sure to replace
key-value with the value from the
preceding step. We recommend that you use GPG to verify the
fingerprint even if you use RPM to verify the installer
package.
gpg --fingerprint key-value
This command returns output similar to the following.
pub 4096R/D0052E5D 2025-01-22 [expires: 2026-07-15]
Key fingerprint = 4855 A9E6 8332 16D6 A77D 8FE4 51A8 E050 D005 2E5D
uid SSM Agent <ssm-agent-signer@amazon.com>
The fingerprint should match the following.
4855 A9E6 8332 16D6 A77D 8FE4 51A8 E050 D005
2E5D
If the fingerprint doesn't match, don't install the agent.
Contact Amazon Web Services Support.
-
Download the signature file according to your instance's
architecture and operating system if you haven't already done
so.
-
Verify the installer package signature. Be sure to replace the
signature-filename and
agent-download-filename with the
values you specified when downloading the signature file and
agent, as listed in the table earlier in this topic.
gpg --verify signature-filename agent-download-filename
For example, for the x86_64 architecture on Amazon Linux 2:
gpg --verify amazon-ssm-agent.rpm.sig amazon-ssm-agent.rpm
This command returns output similar to the following.
gpg: Signature made Sat 08 Feb 2025 12:05:08 AM UTC using RSA key ID D0052E5D
gpg: Good signature from "SSM Agent <ssm-agent-signer@amazon.com>"
gpg: WARNING: This key is not certified with a trusted signature!
gpg: There is no indication that the signature belongs to the owner.
Primary key fingerprint: 4855 A9E6 8332 16D6 A77D 8FE4 51A8 E050 D005 2E5D
If the output includes the phrase BAD signature,
check whether you performed the procedure correctly. If you
continue to get this response, contact Amazon Web Services Support and don't install
the agent. The warning message about the trust doesn't mean that
the signature isn't valid, only that you haven't verified the
public key. A key is trusted only if you or someone who you
trust has signed it. If the output includes the phrase
Can't check signature: No public key, verify
you downloaded SSM Agent version 3.1.1141.0 or later.
- RPM
-
To verify the SSM Agent package on a Linux server
-
Copy the following public key, and save it to a file named
amazon-ssm-agent.gpg.
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v2.0.22 (GNU/Linux)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=aDkv
-----END PGP PUBLIC KEY BLOCK-----
-
Import the public key into your keyring, and note the returned
key value.
rpm --import amazon-ssm-agent.gpg
-
Verify the fingerprint. We recommend that you use GPG to
verify the fingerprint even if you use RPM to verify the
installer package.
rpm -qa gpg-pubkey --qf '%{Description}' | gpg --with-fingerprint | grep -A 1 "ssm-agent-signer@amazon.com"
This command returns the following output.
pub 4096R/D0052E5D 2025-01-22 SSM Agent <ssm-agent-signer@amazon.com>
Key fingerprint = 4855 A9E6 8332 16D6 A77D 8FE4 51A8 E050 D005 2E5D
The fingerprint should match the following.
4855 A9E6 8332 16D6 A77D 8FE4 51A8 E050 D005
2E5D
If the fingerprint doesn't match, don't install the agent.
Contact Amazon Web Services Support.
-
Verify the installer package signature. Be sure to replace the
agent-download-filename with the
values you specified when downloading the agent, as listed in
the table earlier in this topic.
rpm --checksig agent-download-filename
For example, for the x86_64 architecture on Amazon Linux 2:
rpm --checksig amazon-ssm-agent.rpm
This command returns output similar to the following.
amazon-ssm-agent.rpm: rsa sha1 md5 OK
If pgp is missing from the output and you have
imported the public key, then the agent isn't signed. If the
output contains the phrase NOT OK (MISSING KEYS: (MD5)
key-id), check whether
you performed the procedure correctly and verify you downloaded
SSM Agent version 3.1.1141.0 or later. If you continue to get
this response, contact Amazon Web Services Support and don't install the agent.