![]() What it should be used for? For example, generating passwords, CSRF tokens, session keys, or anything remotely related to security. crypto.rand is suited for secure and crypto-ready usage, but it’s slower. math/rand is much faster for applications that don’t need crypto-level or security-related random data generation. So you might question, why should I even use the pseudo-number random generator library provided by math/rand instead? Well, it depends on the use case. We looked at utilizing gen_random_uuid() and uuid-generate_v4() in this post.Go also provides a Cryptographically secure pseudorandom number generator (CSPRNG) in the standard library package crypto.rand In PostgreSQL, there are several alternatives for ID fields, each of which has a suitable use case for whether to use or not use it. This benefit could make the costs of using UUID worthwhile. Because UUID values don't reveal information about your data, they're safer to use in URLs.
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