Dummy SSH Key Pair Generator

How to use

1. 1️⃣
   Choose your options above
2. 2️⃣
   Click Generate
3. 3️⃣
   Copy your result

Detailed instructions

1. Select a key type from the dropdown — choose ED25519 for modern short keys, RSA for long traditional keys, or ECDSA for curve-based keys.
2. Set the count field to how many fake keys you need, for example 3 for a multi-user fixture file.
3. Enter a custom comment in the Key Comment field to label keys by role or environment, such as deploy@staging.
4. Click Generate to produce the batch of formatted fake SSH public key strings.
5. Copy individual keys or the full list and paste them into your config files, docs, or test fixtures.

Use Cases

• •Seeding authorized_keys fixture files for SSH server integration tests in CI pipelines
• •Pre-filling Terraform aws_key_pair variables before real keys are provisioned
• •Populating OpenAPI and API docs examples with structurally valid SSH public key strings
• •Creating multi-user Ansible inventory examples with distinct labeled keys per role
• •Testing SSH key format validation in web app forms using Cypress or Playwright

Tips

• →Use distinct comments per key (web@prod, deploy@staging) when seeding multi-user fixtures — it makes test output easier to trace.
• →ED25519 keys are the safest default for documentation: they look modern, are short enough to display in a single line, and match what most current tutorials show.
• →When testing Terraform modules locally, paste a fake RSA key into a terraform.tfvars file so plan output shows realistic key lengths without a real keypair.
• →If your form validator rejects these keys, switch to RSA — some older validators were written expecting the longer RSA Base64 body and reject shorter ED25519 strings.
• →Generate a batch of 5 or more keys at once and store them in a keys.json fixture file in your test suite so the same realistic-looking values are reused across all tests.
• →Avoid using user@example.com as the comment in public-facing documentation — swap it for a role-based label like ci-bot@yourorg to reinforce good key hygiene habits for readers.

FAQ