---
title: SSLConfig
framework: security
role: collectionGroup
role_heading: API Collection
path: security/sslconfig
---

# SSLConfig

Use these constants to configure Transport Layer Security (TLS) sessions.

## Topics

### Constants

- [kSSLSessionConfig_3DES_fallback](security/ksslsessionconfig_3des_fallback.md)
- [kSSLSessionConfig_ATSv1](security/ksslsessionconfig_atsv1.md)
- [kSSLSessionConfig_ATSv1_noPFS](security/ksslsessionconfig_atsv1_nopfs.md)
- [kSSLSessionConfig_RC4_fallback](security/ksslsessionconfig_rc4_fallback.md)
- [kSSLSessionConfig_TLSv1_3DES_fallback](security/ksslsessionconfig_tlsv1_3des_fallback.md)
- [kSSLSessionConfig_TLSv1_RC4_fallback](security/ksslsessionconfig_tlsv1_rc4_fallback.md)
- [kSSLSessionConfig_TLSv1_fallback](security/ksslsessionconfig_tlsv1_fallback.md)
- [kSSLSessionConfig_anonymous](security/ksslsessionconfig_anonymous.md)
- [kSSLSessionConfig_default](security/ksslsessionconfig_default.md)
- [kSSLSessionConfig_legacy](security/ksslsessionconfig_legacy.md)
- [kSSLSessionConfig_legacy_DHE](security/ksslsessionconfig_legacy_dhe.md)
- [kSSLSessionConfig_standard](security/ksslsessionconfig_standard.md)