objective c - iOS 9 ATS SSL error with supporting server -

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i installed xcode 7 , tried running app under ios 9. i'm getting infamous error: connection failed! error - -1200 ssl error has occurred , secure connection server cannot made. thing server support tlsv1.2 , i'm using nsurlsession.

what problem then?

apple has released full requirements list app transport security.

turned out working tls v1.2 missing of other requirements.

here's full check list:

  1. tls requires @ least version 1.2.
  2. connection ciphers limited provide forward secrecy (see below list of ciphers.)
  3. the service requires certificate using @ least sha256 fingerprint either 2048 bit or greater rsa key, or 256bit or greater elliptic-curve (ecc) key.
  4. invalid certificates result in hard failure , no connection.

the accepted ciphers are:

tls_ecdhe_ecdsa_with_aes_256_gcm_sha384 tls_ecdhe_ecdsa_with_aes_128_gcm_sha256 tls_ecdhe_ecdsa_with_aes_256_cbc_sha384 tls_ecdhe_ecdsa_with_aes_256_cbc_sha tls_ecdhe_ecdsa_with_aes_128_cbc_sha256 tls_ecdhe_ecdsa_with_aes_128_cbc_sha tls_ecdhe_rsa_with_aes_256_gcm_sha384 tls_ecdhe_rsa_with_aes_128_gcm_sha256 tls_ecdhe_rsa_with_aes_256_cbc_sha384 tls_ecdhe_rsa_with_aes_128_cbc_sha256 tls_ecdhe_rsa_with_aes_128_cbc_sha

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