public key encryption - Space constrained asymmetric signature -

I need to sign a small string with asymmetric key encryption scheme. I sign a small string with signed string Will be stored on the chip. I have very little space (about 60 bytes for signature + string), so the generated signature should be as small as possible. I looked around for how to do this, and what I found is that I can use RSA-SHA1, but the signature generated with the 512 bit key is 64 bytes. It is slightly more I have a small asymmetric signature Can I use safe algorithm to generate? Will it still be safe if I store the SHA1 amount of RSA-SHA1 signature, and then confirm it?

Are you climbing here, one of these properties - to protect against return value (Where two different input results are in the same output hash). Normally 128-512 bits are preferred, so the SHA-1 signature gives you 512 bits.

A business is closed with all things in cryptography security as you are using asymmetric signatures, have you considered using it as your signature option? This will give you a very small return of 128 bits, but it comes with the warning that the MD5 is considered broken and it is usually transferred.