Decryption Profile Models

Overview

The Decryption Profile models provide a structured way to manage SSL/TLS decryption settings in Palo Alto Networks' Strata Cloud Manager. These models support configuring forward proxy, inbound proxy, and no-proxy SSL settings, as well as protocol-specific settings like allowed algorithms and TLS versions. The models handle validation of inputs and outputs when interacting with the SCM API.

Models

The module provides the following Pydantic models:

• DecryptionProfileBaseModel: Base model with fields common to all profile operations
• DecryptionProfileCreateModel: Model for creating new decryption profiles
• DecryptionProfileUpdateModel: Model for updating existing decryption profiles
• DecryptionProfileResponseModel: Response model for decryption profile operations
• SSLProtocolSettings: Model for SSL protocol configuration
• SSLForwardProxy: Model for SSL forward proxy settings
• SSLInboundProxy: Model for SSL inbound proxy settings
• SSLNoProxy: Model for SSL no-proxy settings

All models use extra="forbid" configuration, which rejects any fields not explicitly defined in the model.

Model Attributes

DecryptionProfileBaseModel

Attribute	Type	Required	Default	Description
name	str	Yes	None	Profile name. Pattern: ^[A-Za-z0-9][A-Za-z0-9_\-\.\s]*$
ssl_forward_proxy	SSLForwardProxy	No	None	SSL Forward Proxy settings
ssl_inbound_proxy	SSLInboundProxy	No	None	SSL Inbound Proxy settings
ssl_no_proxy	SSLNoProxy	No	None	SSL No Proxy settings
ssl_protocol_settings	SSLProtocolSettings	No	None	SSL Protocol settings
folder	str	No**	None	Folder location. Max 64 chars
snippet	str	No**	None	Snippet location. Max 64 chars
device	str	No**	None	Device location. Max 64 chars

** Exactly one container (folder/snippet/device) must be provided for create operations

DecryptionProfileCreateModel

Inherits all fields from DecryptionProfileBaseModel and enforces that exactly one of folder, snippet, or device is provided during creation.

DecryptionProfileUpdateModel

Extends DecryptionProfileBaseModel by adding:

Attribute	Type	Required	Default	Description
id	UUID	Yes	None	The unique identifier of the profile

DecryptionProfileResponseModel

Extends DecryptionProfileBaseModel by adding:

Attribute	Type	Required	Default	Description
id	UUID	Yes	None	The unique identifier of the profile

Enum Types

SSLVersion

Defines the SSL/TLS version options:

Value	Description
sslv3	SSL version 3
tls1-0	TLS version 1.0
tls1-1	TLS version 1.1
tls1-2	TLS version 1.2
tls1-3	TLS version 1.3
max	Maximum available

Component Models

SSLProtocolSettings

Attribute	Type	Required	Default	Description
min_version	SSLVersion	No	tls1-0	Minimum SSL/TLS version
max_version	SSLVersion	No	tls1-2	Maximum SSL/TLS version
auth_algo_md5	bool	No	True	Allow MD5 authentication
auth_algo_sha1	bool	No	True	Allow SHA1 authentication
auth_algo_sha256	bool	No	True	Allow SHA256 authentication
auth_algo_sha384	bool	No	True	Allow SHA384 authentication
enc_algo_3des	bool	No	True	Allow 3DES encryption
enc_algo_aes_128_cbc	bool	No	True	Allow AES-128-CBC encryption
enc_algo_aes_128_gcm	bool	No	True	Allow AES-128-GCM encryption
enc_algo_aes_256_cbc	bool	No	True	Allow AES-256-CBC encryption
enc_algo_aes_256_gcm	bool	No	True	Allow AES-256-GCM encryption
enc_algo_chacha20_poly1305	bool	No	True	Allow ChaCha20-Poly1305 encryption
enc_algo_rc4	bool	No	True	Allow RC4 encryption
keyxchg_algo_dhe	bool	No	True	Allow DHE key exchange
keyxchg_algo_ecdhe	bool	No	True	Allow ECDHE key exchange
keyxchg_algo_rsa	bool	No	True	Allow RSA key exchange

SSLForwardProxy

Attribute	Type	Required	Default	Description
auto_include_altname	bool	No	False	Include alternative names
block_client_cert	bool	No	False	Block client certificates
block_expired_certificate	bool	No	False	Block expired certificates
block_timeout_cert	bool	No	False	Block certificates that timed out
block_tls13_downgrade_no_resource	bool	No	False	Block TLS 1.3 downgrade when no resource
block_unknown_cert	bool	No	False	Block unknown certificates
block_unsupported_cipher	bool	No	False	Block unsupported ciphers
block_unsupported_version	bool	No	False	Block unsupported versions
block_untrusted_issuer	bool	No	False	Block untrusted issuers
restrict_cert_exts	bool	No	False	Restrict certificate extensions
strip_alpn	bool	No	False	Strip ALPN

SSLInboundProxy

Attribute	Type	Required	Default	Description
block_if_hsm_unavailable	bool	No	False	Block if HSM is unavailable
block_if_no_resource	bool	No	False	Block if no resources available
block_unsupported_cipher	bool	No	False	Block unsupported ciphers
block_unsupported_version	bool	No	False	Block unsupported versions

SSLNoProxy

Attribute	Type	Required	Default	Description
block_expired_certificate	bool	No	False	Block expired certificates
block_untrusted_issuer	bool	No	False	Block untrusted issuers

Exceptions

The Decryption Profile models can raise the following exceptions during validation:

• ValueError: Raised in several scenarios:
  • When multiple container types (folder/snippet/device) are specified
  • When no container type is specified for create operations
  • When SSL version validation fails (max_version < min_version)
  • When name pattern validation fails (must start with alphanumeric character)
  • When container field pattern validation fails
  • When field length limits are exceeded

Model Validators

SSL Version Validation

The SSL protocol settings enforce that max_version cannot be less than min_version:

# Using dictionary
try:
    profile_dict = {
        "name": "invalid-profile",
        "folder": "Texas",
        "ssl_protocol_settings": {
            "min_version": "tls1-2",
            "max_version": "tls1-1"  # Invalid: max < min
        }
    }
    response = profile.create(profile_dict)
except ValueError as e:
    print(e)  # "max_version cannot be less than min_version"

# Using model directly
from scm.models.security import SSLProtocolSettings

try:
    settings = SSLProtocolSettings(
        min_version="tls1-2",
        max_version="tls1-1"  # Invalid: max < min
    )
except ValueError as e:
    print(e)  # "max_version cannot be less than min_version"

Container Type Validation

For create operations, exactly one container type must be specified:

# Using dictionary
from scm.config.security import DecryptionProfile

# Error: multiple containers specified
try:
    profile_dict = {
        "name": "invalid-profile",
        "folder": "Texas",
        "device": "fw01",  # Can't specify both folder and device
        "ssl_protocol_settings": {
            "min_version": "tls1-2",
            "max_version": "tls1-3"
        }
    }
    profile = DecryptionProfile(api_client)
    response = profile.create(profile_dict)
except ValueError as e:
    print(e)  # "Exactly one of 'folder', 'snippet', or 'device' must be provided."

Usage Examples

Creating a Basic Decryption Profile

from scm.client import Scm

# Initialize client
client = Scm(
    client_id="your_client_id",
    client_secret="your_client_secret",
    tsg_id="your_tsg_id"
)

# Using dictionary
profile_dict = {
    "name": "basic-profile",
    "folder": "Texas",
    "ssl_protocol_settings": {
        "min_version": "tls1-2",
        "max_version": "tls1-3",
        "auth_algo_sha256": True,
        "auth_algo_sha384": True
    }
}

response = client.decryption_profile.create(profile_dict)
print(f"Created profile: {response.name}")

Creating a Profile with Forward Proxy Settings

from scm.client import Scm

# Initialize client
client = Scm(
    client_id="your_client_id",
    client_secret="your_client_secret",
    tsg_id="your_tsg_id"
)

# Using dictionary
forward_proxy_config = {
    "name": "forward-proxy-profile",
    "folder": "Texas",
    "ssl_forward_proxy": {
        "auto_include_altname": True,
        "block_expired_certificate": True,
        "block_untrusted_issuer": True,
        "strip_alpn": False
    },
    "ssl_protocol_settings": {
        "min_version": "tls1-2",
        "max_version": "tls1-3"
    }
}

response = client.decryption_profile.create(forward_proxy_config)
print(f"Created forward proxy profile: {response.name}")

Updating a Decryption Profile

from scm.client import Scm

# Initialize client
client = Scm(
    client_id="your_client_id",
    client_secret="your_client_secret",
    tsg_id="your_tsg_id"
)

# Fetch existing profile
existing = client.decryption_profile.fetch(name="basic-profile", folder="Texas")

# Modify attributes using dot notation
existing.ssl_protocol_settings.min_version = "tls1-2"
existing.ssl_protocol_settings.max_version = "tls1-3"

# Modify forward proxy settings if present
if existing.ssl_forward_proxy:
    existing.ssl_forward_proxy.block_expired_certificate = True
    existing.ssl_forward_proxy.block_untrusted_issuer = True

# Pass modified object to update()
updated = client.decryption_profile.update(existing)
print(f"Updated profile: {updated.name}")