Creates an X.509 certificate using the specified certificate signing request.

Requires permission to access the CreateCertificateFromCsr action.

The CSR must include a public key that is either an RSA key with a length of at least 2048 bits or an ECC key from NIST P-25 or NIST P-384 curves. For supported certificates, consult Certificate signing algorithms supported by IoT.

Reusing the same certificate signing request (CSR) results in a distinct certificate.

You can create multiple certificates in a batch by creating a directory, copying multiple .csr files into that directory, and then specifying that directory on the command line. The following commands show how to create a batch of certificates given a batch of CSRs. In the following commands, we assume that a set of CSRs are located inside of the directory my-csr-directory:

On Linux and OS X, the command is:

$ ls my-csr-directory/ | xargs -I {} aws iot create-certificate-from-csr --certificate-signing-request file://my-csr-directory/{}

This command lists all of the CSRs in my-csr-directory and pipes each CSR file name to the aws iot create-certificate-from-csr Amazon Web Services CLI command to create a certificate for the corresponding CSR.

You can also run the aws iot create-certificate-from-csr part of the command in parallel to speed up the certificate creation process:

$ ls my-csr-directory/ | xargs -P 10 -I {} aws iot create-certificate-from-csr --certificate-signing-request file://my-csr-directory/{}

On Windows PowerShell, the command to create certificates for all CSRs in my-csr-directory is:

> ls -Name my-csr-directory | %{aws iot create-certificate-from-csr --certificate-signing-request file://my-csr-directory/$_}

On a Windows command prompt, the command to create certificates for all CSRs in my-csr-directory is:

> forfiles /p my-csr-directory /c "cmd /c aws iot create-certificate-from-csr --certificate-signing-request file://@path"