Encryption 解密签名和加密的SMIME消息时Openssl的内容类型错误

我有以下多部分正文的smime消息。 我正在尝试使用下面的openSSL命令，使用证书和私钥对其进行解密。但是，我得到了一个错误的内容类型。 有人知道这个错误来自何处以及如何解决吗

openssl命令

openssl smime -decrypt -in enc_signed.txt -recip enc_signed.crt -inkey enc_signed.key

smime消息

MIME-Version: 1.0
Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg="sha1"; boundary="----BC660923488785300E5AA069D494A307"

This is an S/MIME signed message

------BC660923488785300E5AA069D494A307
MIME-Version: 1.0
Content-Disposition: attachment; filename="smime.p7m"
Content-Type: application/x-pkcs7-mime; smime-type=enveloped-data; name="smime.p7m"
Content-Transfer-Encoding: base64
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------BC660923488785300E5AA069D494A307
Content-Type: application/x-pkcs7-signature; name="smime.p7s"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="smime.p7s"

MIIGawYJKoZIhvcNAQcCoIIGXDCCBlgCAQExCzAJBgUrDgMCGgUAMAsGCSqGSIb3
DQEHAaCCA7UwggOxMIICmaADAgECAgkAj4Lp9JFutvswDQYJKoZIhvcNAQELBQAw
bzELMAkGA1UEBhMCQkUxETAPBgNVBAgMCEJydXNzZWxzMRUwEwYDVQQKDAxEZXV0
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AgIBQDAHBgUrDgMCBzANBggqhkiG9w0DAgIBKDANBgkqhkiG9w0BAQEFAASCAQBv
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6MQMhg7rbKmosyFMXs32

------BC660923488785300E5AA069D494A307--

错误

---

错误是错误的内容类型，而不是错误的内容。您有一封经过加密然后（清除）签名的邮件；您需要首先删除签名（无论是否经过验证，尽管此消息中的数据很重要或有价值，但验证是正确的），然后解密签名部分。@dave_thompson_085感谢您的指导。它现在起作用了。此外，我还更正了错误描述。感谢您指出。错误是内容类型错误，而不是内容错误。您有一封经过加密然后（清除）签名的邮件；您需要首先删除签名（无论是否经过验证，尽管此消息中的数据很重要或有价值，但验证是正确的），然后解密签名部分。@dave_thompson_085感谢您的指导。它现在起作用了。此外，我还更正了错误描述。谢谢你指出这一点。

Error decrypting PKCS#7 structure
3848:error:21072071:PKCS7 routines:PKCS7_decrypt:wrong content type:crypto\pkcs7\pk7_smime.c:489: