This signature file may be used to cryptographically verify file integrity, like this:: $ gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 0xA16EB94D $ gpg --list-keys 0xA16EB94D pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] uid Turnkey Linux Release Key $ gpg --verify turnkey-ushahidi-12.1-squeeze-i386-vmdk.zip.sig gpg: Signature made Wed Jun 5 00:57:58 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 7001a7d432ee7dbfa66c1933ab01f6b59c01f4bf * md5sum 62e550a3020037b252fdec9fb0cf6af0 You can calculate these on your end and compare to check for errors, but cryptographic verification is recommended for security reasons. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJRro0KAAoJEIXCXpWhbrlNYGcIANmyqBhdFDC93tfBhriNwSja N8cs8M+tYwjULsqrhGO7oRT5tJNDAhBOgbScGTAMllktNnFp47CZuFWTpRTGdAgD Roqk1879cghl7WwCVdrPmMpKcNp5JO1s3C9CyjuXadh/fz0Fgl+KvYc60Uaz2dAK 2BdhT7fkxs8qjkDDX3rUSjKy4a75u9vU9MVnxqD770/hx9RHZpxi2Gdni41wcCu4 yq/MmSy8csN4XnhFAfg3e4RgXOUCw7dVByCfAf99BNIEHYIBpggqz1v+9GfyHHNR eEOHoj+c/3sKKc6Q1dXYsK8ysLpp+W6NERx4Gml1aqV0x63R2PfZ2k89Ayiu2/U= =aekN -----END PGP SIGNATURE-----