sim800c 中支持哪些密码套件?

Question

我正在尝试与使用SSL/TLS但密码套件有限的服务器进行通信。
如何在 sim800c 中获取支持的密码套件列表，以查看它是否可以与服务器通信？

Answer 1

我创建了@roberto-caboni建议的测试环境。我用SIM800L和SIM800C进行了测试。密码套件是相同的。

结果是：

/* SIM800L firmware revision */
AT+CGMR
Revision:1418B05SIM800L24
OK
/* SIM800C firmware revision */
AT+CGMR
Revision:1418B08SIM800C24_BT
OK
/* I wiresharked a SLL connection to my server, the results:
Cipher Suites (9 suites)
Cipher Suite: TLS_RSA_WITH_RC4_128_MD5 (0x0004)
Cipher Suite: TLS_RSA_WITH_RC4_128_SHA (0x0005)
Cipher Suite: TLS_RSA_WITH_AES_128_CBC_SHA (0x002f)
Cipher Suite: TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA (0x0016)
Cipher Suite: TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA (0x0013)
Cipher Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA (0x000a)
Cipher Suite: TLS_RSA_WITH_DES_CBC_SHA (0x0009)
Cipher Suite: TLS_RSA_EXPORT_WITH_RC4_40_MD5 (0x0003)
Cipher Suite: TLS_DHE_DSS_WITH_DES_CBC_SHA (0x0012)
*/

Answer 2

修订版：1418B09SIM800C24_TLS

Cipher Suites (10 suites)
Cipher Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 (0xc02b)
Cipher Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)
Cipher Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 (0xc023)
Cipher Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027)
Cipher Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA (0xc009)
Cipher Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)
Cipher Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 (0x009c)
Cipher Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 (0x003c)
Cipher Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)
Cipher Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA (0xc00a)