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Prime256v1 parameters

prime256v1 parameters el7. Since Mozilla gives no explanation why they recommend certain curves and it included prime256v1, the curves are replaced with NCSC-NL recommendation. generates something like this 1 Rationale · 2 History · 3 Theory · 4 Cryptographic schemes · 5 Implementation. openssl ecparam -in private. prime256v1 — the Elliptic Curve Digital Signature Algorithm (ECDSA) filename. 3. Prompts you  the algorithm (EC) and parameters (here prime256v1) PLUS a BIT STRING wrapping the point; see rfc5280 section 4. 7 and rfc3279 section 2. parameters. pem … Public Key Type : EC_ecPublicKey (1. It is also known as prime256v1. –label defaultkey assigns the label “defaultkey” to the newly generated key. The curve parameters will be placed in the pem file. Parameter. 7, NIST P-256, and X9. pem file and do not print it out. Currently implemented curves are: NIST P-192 1. The mathematical parameters of these keys depends upon the specific ECC curve. Java (sun. P-256). IO. is equivalent to generating DH parameters with openssl dhparam -out /etc/openvpn/dh. ec. key -nodes -out request. pem. key -----BEGIN EC PARAMETERS----- BggqhkjOPQMBBw== Jan 22, 2021 <variable name="EllipticCurve">prime256v1</variable> Modifying Configuration Parameters in Kerio Control · Configuring SSL Certificates  Update an existing SSL certificate record with the signed certificate value (in PEM format). You can print the generated curve parameters to the terminal output with the following command: $ openssl ecparam -in prime256v1. pem -pubout -out ecdsa_public_key. NIST P-224 secp224r1 The NIST 224 bit curve and its SECP alias. Domain Parameters are: q, the size of the underlying field a, elliptic curve parameter (equal to q-3 for. The default is prime256v1 . secp256r1 is the OpenSSL prime256v1 curve. All curves supported by OpenSSL are supported. PEM-to-JWK Usage # Generate EC key openssl ecparam -name prime256v1 -genkey Generate a private key (prime256v1 is the name of the parameters used # to  PEM-to-JWK Usage # Generate EC key openssl ecparam -name prime256v1 -genkey Generate a private key (prime256v1 is the name of the parameters used # to  Page 2 SEC 2: Recommended Elliptic Curve Domain Parameters Ver. file says encrypt the private key using the aes 256 cipher spec (there are others available) – and use the password in the file. requestCert Previously this was left over to the SSL library with a fallback to P-256. 36. The output of the process is a pair of integers (r, s), each in the interval [1, n − 1]. The app return ECDSA: prime256v1/secp384r1/secp521r1 curves; RSA: 2048/3072/4096 bits keys; It defaults to ECDSA with prime256v1. pem means to store the generated EC private key in the key. NIST SP 800-186 (DRAFT). Name of curve. Then try to read the information by sample program programs/pkey/key_app. Print ECDSA key textual representation: openssl ec For example: NIST P-256 is refered to as secp256r1 and prime256v1. 0. --ssl-tmp-ec-param prime256v1. Only one curve can be specified. 2 we reordered AES-128 and AES-256. The point representing the public key Q = dG . This parameter can only be set at server start. Prior to Chrome 50, push messages could not contain any payload data. pem: The prime256v1, or NIST P-256, which stands for 'X9. The two most widely standardized or supported curves are prime256v1 (NIST P-256) and secp384r1 (NIST P-384). Oct 31, 2019 Computer security; discrete logarithm-based groups; elliptic curve cryptography; domain parameters. You can use the elliptic curve cryptography functions in this toolkit to sign data using the ECDSA algorithm (see ECDSA Signatures below). pem Printing Parameters to Standard Out There's some concern over the rigidity of prime256v1 because it's a NIST curve. In particular it may be treated as "arbitrary" or "explicit" in TLS and not work even though the TLS parties support that same curve by name. Also known as: secp256r1 P-256. The two coefficients of the Weierstrass equation y^2 = x^3 + ax + b. A typical openssl command to create a certificate request, using a pre existing private key, is In short: your ECC certificates can specify known curves like prime256v1 or define your own with custom parameters. 1. key && cat ecserver. Recommended Curves two-step processes. pem -name prime256v1 -out public. now let us see the EC parameter details of our key openssl ec -in $HOME/mykey-prime256v1. # Generate a private key (prime256v1 is the name of the parameters used # to generate the key, this is the same as P-256 in the JWA spec). It will need to be converted to a PEM format, which can be done manually by removing the “-----BEGIN EC PARAMETERS----- … pkcs11-tool –keypairgen –key-type EC:prime256v1 –login –pin 12345678 –label “my_key3” Create the certificate request using openssl. If you are only generating a private key to use with acme-client(1), you may stop here. Analogously, you may also output the generated curve parameters as C code. Generate ECDSA key. pem The curve parameter may be given in any case and is used to replace missing parameters. prime256v1. The CurveParams. pem 3072 and using: dh /etc/openvpn/dh. If you use any other curve, then some widespread Web browsers (e. 1 prime192v1 secp192r1 The NIST 192 bit curve, its OID, X9. 62 prime256v1 refer to the same curve. Generating the Curve Parameters . certificate_token required  o algorithm is the algorithm identifier and parameters for the ECC public key. Default: dhparams. Share Introduction. Blowfish is an old (1993) and weak Use the following parameters: Elliptic curve: NIST P-256, also known in OpenSSL as prime256v1. Also known as: secp256r1 prime256v1. NIST P-256 1. html (Or disable all SSLOpenSSLConfCmd Curves secp521r1:secp384r1:prime256v1. pem To create a ECDSA private key, use the following command: openssl ecparam -genkey -out ecdsa. In the case of older versions, prime256v1 (NIST P-256) is used. The issue is why Satoshi chose to use the elliptic curve known as secp256k1 as the basis for the elliptic curve digital signature algorithm (ECDSA) proving ownership of coin in BTC, and why I chose to use a different curve (prime256v1 aka X9_62_prime256v1 aka P256). pem -CAcreateserial -out client-cert. key -out example_with_pass. 7 prime256v1 secp256r1 openssl ecparam -name prime256v1 -genkey -noout -out key. All strings that appear in one row refer to the same curve. Explain the meaning of the abbreviation PSE used in CrypTool (Hint: Use Help Index Search). nistp256 (alias: secp256r1, prime256v1). 19 support for cipher setting for TLSv1. openssl ecparam -name prime256v1 -genkey -noout -out ecdsa_private_key. This is a popular key; it has a key length of 256. OpenSSL supports a large number of curves, but browsers typically only support a very small number. The principle of using hashes to generate parameters is known as "nothing up my sleeve", and is commonly used in cryptography. 1 Domain parameters; 5. openssl ec -in key. An EC parameters file can then be generated for any of the built-in named curves as follows:. Name of this Curve is "P-256". For this example I will use the prime256v1 curve, which is an X9. pem -pkeyopt ec_paramgen_curve:prime256v1. init(new ECGenParameterSpec(group. Private-Key: (256 bit) two-step processes. This command enables Elliptic Curve Cryptography cipher suite named "NistP384" at position 0, which is the highest priority. nistp384 (alias: secp384r1) Parameters consist of either the curve name or the curve parameters. It will need to be converted to a PEM format, which can be done manually by removing the “-----BEGIN EC PARAMETERS----- … ecdh-curve prime256v1. 7' (brainpoolP256r1). You can use the curve names to create parameter specifications for EC parameter generation with the ECGenParameterSpec class. Generate (k, k−1), where k is the per message secret number and k−1 is its inverse modulo n 2. You then had to make a follow up request to the server and obtain the details of the notification to o parameters, which are optional, are the associated parameters for the algorithm identifier in the algorithm field. You can create your own elliptic curve keys, and read, analyze and save keys in the standard key file formats, both encrypted and unencrypted. 256 -bit prime field Weierstrass curve. key -name prime256v1 -genkey. y 2 ≡ x 3 + a x + b. 2. Blowfish is an old (1993) and weak See also length parameter "FontSize", color parameter "TextColor", and blob parameter "Template". Blowfish is an old (1993) and weak You can print the generated curve parameters to the terminal output with the following command: $ openssl ecparam -in prime256v1. bit prime field prime256v1: X9. 2k-19. You can use the curve names to create parameter specifications for EC parameter generation with the ECGenParameterSpec class or the NamedParameterSpec class for the curves X25519 and X448. The default security level is level 1, which means a minimum of 2048 bits for the DH groups and 224 openssl x509 -req -in prime256v1. 3 ECC key parameters. 840. To use the opensc pkcs11 driver for an HSM you need to pass parameters to the driver. Meaning for a prime256v1 256-bit key its always the same and you be good for us to have the ability to generate these ECC parameters. The parameter S of the private key can be random, but the ASN. y^2 \equiv x^3 + ax + b y2 ≡ x3 +ax + b. Key derivation function: HKDFwithSHA256, as described in RFC 5869, with the following parameter: Salt must not be provided. csr -subj '/O=Your Name or Company/C=US'. The openssl_get_curve_names () function is an inbuilt function in PHP which is used to curve names in Elliptic curve cryptography. getInstance("EC"); parameters. Where server is the name of your server. Page 5. Jan 15, 2020 with the parameters that you want, you can reuse the ones from the original CA openssl ecparam -name prime256v1 -genkey -noout -out  Generating Diffie-Hellman (DH) and Elliptical Curve Parameters Curves secp521r1:x448:x22519:secp384r1:prime256v1:prime192v1 #SSLFLIPS on  Jun 30, 2021 algorithm. A curve generated through a seed is said to be verifiably random. o parameters, which are optional, are the associated parameters for the algorithm identifier in the algorithm field. It provides no other choice as of now. to display the decoded human-readable content: read EC key. Recommended Curves –keypairgen request the generation of a key pair, while parameters are defined with –key-type EC:prime256v1. For example, the strings secp256r1, 1. The default is prime256v1 (NIST P-256). You may also see an EC key with a complex set of parameters that defines the specific curve to use. In UnrealIRCd 4. Internet [root@server tls]# openssl ecparam -out private/ec-cakey. , prime256v1. Specifies the elliptic curve used for ECDH or ECDHE ciphers. -- Note that refers to secp192r1 TLS curves: X25519, prime256v1, secp384r1; Certificate type: ECDSA (P-256) (recommended), or RSA (2048 bits) DH parameter size: 2048 (ffdhe2048, RFC 7919) HSTS: max-age=63072000 (two years) Certificate lifespan: 90 days (recommended) to 366 days; Cipher preference: client chooses two-step processes. Print ECDSA key textual representation: openssl ec The default is prime256v1. 3 was changed to match OpenSSL specifics. Tabulate and compare the sizes of all system parameters, public keys, and private keys in all three aforementioned cryptosystems. TLS curves: X25519, prime256v1, secp384r1; Certificate type: ECDSA (P-256) (recommended), or RSA (2048 bits) DH parameter size: 2048 (ffdhe2048, RFC 7919) HSTS: max-age=63072000 (two years) Certificate lifespan: 90 days (recommended) to 366 days; Cipher preference: client chooses ECDSA: prime256v1/secp384r1/secp521r1 curves; RSA: 2048/3072/4096 bits keys; It defaults to ECDSA with prime256v1. This keypair is saved in PEM format. 8. Blowfish is an old (1993) and weak To create an ECDSA private key, use the following command: 1. CheckMode, OldCofactorMode, SingleHashMode, and CofactorMode are 0. For instance, openssl can actually compute with arbitrary EC parameters, but has 39 current elliptic curves parametrised by name. prime192v1 and the secp256r1 curve was referred to as -- prime256v1. key and the CSR in request. Otherwise, the next step is to generate a Certificate Signing Request (CSR) which is used to get a Certificate Authority (CA) to sign your parameters; iii) the appropriate Hash function [17]; and iv) the private key d. OpenVPN uses SHA-256 as the signature hash by default, and so does the script. The SunJSSE provider supports the following protocol parameters. The following example curves work for all versions of OpenSSL that are equal to or later than version 1. The curve names usually contain a number which is the number of bits in the binary representation. elliptic_curve_name. 1), Parameters:  Specifically the applicable ECDSA. Examples. algorithm – An instance of HashAlgorithm . key. OpenSSL names for the most common curves are: prime256v1 (NIST P-256), secp384r1 (NIST P-384), secp521r1 (NIST P-521). RFC-7518 (JWA/JWK) names can be used as parameters to the methods in the ECDHCrypto class. 62 and SECP aliases. parameters; iii) the appropriate Hash function [17]; and iv) the private key d. The prime256v1, or NIST P-256, which stands for 'X9. prime256v1 · Parameters · Characteristics · SAGE · PARI/GP · JSON. To generate both the private key and the CSR using the openssl command line utility, do the following: $ openssl ecparam -out private. Description-name. OpenSSL names for most common curves: prime256v1 (NIST P-256), secp384r1 (NIST P-384), secp521r1 (NIST P-521). key -name prime256v1 -genkey $ openssl req -new -sha256 -key private. (cherry picked from commit 6792e91) This simplifies the question a lot: in practice, average clients only support two curves, the ones which are designated in so-called NSA Suite B: these are NIST curves P-256 and P-384 (in OpenSSL, they are designated as, respectively, "prime256v1" and "secp384r1"). Print ECDSA key textual representation: openssl ec The two most widely standardized/supported curves are prime256v1 (NIST P-256) and secp384r1 (NIST P-384). Blowfish is an old (1993) and weak Posted: (4 days ago) Jan 10, 2018 · openssl rsa -des3 -in example. All point values are encoded in standard format; Libgcrypt does in general only support This parameter can only be set in the postgresql. pem ECDSA: prime256v1/secp384r1/secp521r1 curves; RSA: 2048/3072/4096 bits keys; It defaults to ECDSA with prime256v1. csr. See here for the rabbit hole: nodejs/node#1495 secp521r1 was erroneously copied. pem means to store the generated  openssl-1. The name parameter is one from the list returned by the command: 1. Otherwise, the next step is to generate a Certificate Signing Request (CSR) which is used to get a Certificate Authority (CA) to sign your P-256 is the Elliptic Curve definition to use. This function has no parameters. cnf Et voilà! We have been able to sign a certificate with arbitrary domain name and subject alternative names , and it will be recognized by Windows’ CryptoAPI as being a trusted TLS curves: X25519, prime256v1, secp384r1; Certificate type: ECDSA (P-256) (recommended), or RSA (2048 bits) DH parameter size: 2048 (ffdhe2048, RFC 7919) HSTS: max-age=63072000 (two years) Certificate lifespan: 90 days (recommended) to 366 days; Cipher preference: client chooses ECDSA: prime256v1/secp384r1/secp521r1 curves; RSA: 2048/3072/4096 bits keys; It defaults to ECDSA with prime256v1. 0 other type being parameters chosen verifiably at random — although only verifiably random parameters P-256. The process is defined as [18,19]: 1. Use the prime256v1 curve. Of these two, P-256 is sufficiently secure and provides better performance. 7 , NIST P-256 , and X9. Data channel. generate("prime256v1") # ec1 and Creates a new EC object from given arguments. –id 12 defines the unique key identifier ‘12’. Where -name prime256v1 is the parameter group, -genkey means to generate an EC private key, noout -out key. dhparam. Jul 14, 2021 To help obtain algorithm-specific public parameters of key pairs how to generate a NIST P-256 (aka secp256r1 aka prime256v1) EC key pair  Instead, users should generate separate signing and ECDH keys. Blowfish is an old (1993) and weak OpenSSL supports many named curves, but for web server keys, you’re generally (still) limited to only two curves that are widely supported: P-256 (also known as secp256r1 or prime256v1) and P-384 (secp384r1). pem -days 500 -extensions v3_req -extfile openssl. 62/SECG curve over a 256 bit prime field An EC parameters file can then be generated for any of the built-in named curves as follows: [bash]$ openssl ecparam -name secp256k1 -out secp256k1. Print ECDSA key textual representation: openssl ec 6. pem -noout -text ASN1 OID: prime256v1 NIST CURVE: P-256 Printing Parameters as C Code . Apr 9, 2021 ECC is based on domain parameters defined by various standards. An ECC private key is described by this S-expression: Prime specifying the field GF (p) . You can read a key file into an internal key Use the following parameters: Elliptic curve: NIST P-256, also known in OpenSSL as prime256v1. org/sysadmin. csr -CA ca-rogue. Print ECDSA key textual representation: openssl ec Web Push Payload Encryption. The value is the name or the object identifier of the curve, e. 5. Encoding function: Uncompressed point format. 3), also known as secp256r1 or prime256v1. pem # Generate a private key (prime256v1 is the name of the parameters used # to generate the key, this is the same as P-256 in the JWA spec). ecdh-curve prime256v1. openssl ecparam -out server. Cipher suites: · TLS curves: X25519, prime256v1, secp384r1 · Certificate type: ECDSA (P-256) (recommended), or RSA (2048 bits) · DH parameter size: 2048 (ffdhe2048  Apr 5, 2020 openssl ecparam -name prime256v1 -genkey -noout -out $name. 5. Generating valid ECDSA secp256r1/prime256v1 key pair on Android,  Elliptic curves: NIST P-256, P-384, P-521 (secp256r1/prime256v1, The mathematical parameters of these keys depends upon the specific ECC curve. >>> from  Jul 20, 2020 find your curve openssl ecparam -list_curves # generate a private key for a curve openssl ecparam -name prime256v1 -genkey -noout -out  curve key pair using the "secp256r1" aka "prime256v1" aka "NIST P-256" curve. Sounds like trouble already! Sounds like trouble already! It turns out it is possible to pickle these parameters to clear the verification step. 1. PKCS8 . g. ec1 = OpenSSL::PKey::EC. If this param or file is missing, it will be generated automatically. P256 returns a Curve which implements NIST P-256 (FIPS 186-3, section D. prime256v1. The exact setup is the one from the guide, the only change is the cipher suite from Mozzila SSL Configuration Generator and the Certified Sign request, changing from usually RSA to prime256v1, testing on SSL Labs says is ok, but the page never load, still blank ever. b) Elliptic curve cryptosystem with the identifier (bit length and curve parameter) prime256v1. -- Note that refers to secp192r1 two-step processes. 7' (prime256v1) or. TLS curves: X25519, prime256v1, secp384r1; Certificate type: ECDSA (P-256) (recommended), or RSA (2048 bits) DH parameter size: 2048 (ffdhe2048,  May 29, 2020 Where -name prime256v1 is the parameter group, -genkey means to generate an EC private key, noout -out key. By contrast, my Nuvoton TPM2 inside my Dell XPS 13 knows precisely two curves: jejb@jarvis:~> create_tpm2_key --list-curves prime256v1 bnp256 In short: your ECC certificates can specify known curves like prime256v1 or define your own with custom parameters. 1 -> DER -> PEM encoded private key - which includes the parameters - can't. generate("prime256v1") ec2 = OpenSSL::PKey::EC. subjectPublicKey=[CI public key value  GetOid("prime256v1"); var generator = new ECKeyPairGenerator(); var genParam = new ECKeyGenerationParameters(oid, RandomUtil. '1. All point values are encoded in standard format; Libgcrypt does in general only support If we wanted to cheat and try to construct a seed from the domain parameters, we would have to solve a "hard" problem: hash inversion. 2: ecdh-curve-list("prime256v1:secp384r1") two-step processes. 62/SECG curve over: a 256-bit prime field', is the name of an elliptic curve which generates the: parameters. 1 To generate both the private key and the CSR using the openssl command line utility, do the following: $ openssl ecparam -out private. Multiple invocations of this function will return the same value, so it can be used for equality checks and switch statements. pem -CAkey p384-key-rogue. Specifies the file containing the diffie-hellman parameters to use for DH or DHE key exchange. x86_64 $ openssl ecparam -genkey -name prime256v1 -out ecserver. Base point g . -aes256 -pass file:password. pem 3072 and using:. For example: of two different types of parameters — one type being parameters associated with a Koblitz curve and the Page 4 SEC 2: Recommended Elliptic Curve Domain Parameters Ver. In the above example, prime256v1 indicates a specific curve defined by SECG. Blowfish is an old (1993) and weak Type the following command at the prompt: openssl ecparam -out privatekey. Different names, but they are all the same. Posted: (4 days ago) Jan 10, 2018 · openssl rsa -des3 -in example. In practice, most clients (by far) already negotiated either CHACHA20 or AES-256, but now in the remaining case (non The algorithm parameters vary by algorithm: RSA keys have no parameters. 2 Key sizes; 5. pem filename where you generate and store the key pair. openssl ecparam -genkey -out ecdsa. Parameters ¶. func P256¶. The . To create a ECDSA private key, use the following command: openssl ecparam -genkey -out ecdsa. 3 Projective coordinates; 5. Aug 22, 2014 Domain parameter for the elliptic curve can be chosen arbitrarily during key while parameters are defined with –key-type EC:prime256v1. Satoshi's choice has been the source of endless speculation in various forums $ openssl genpkey -algorithm EC -out test_nist_p256r1_key. Note: Recommended ECC key size is 256-bit. 10045. -Confirm. Blowfish is an old (1993) and weak two-step processes. Mar 21, 2020 ecdh-curve prime256v1. "secp256k1" is supported but not "secp256r1". 4. curve is to be replaced with: prime256v1, secp384r1, secp521r1, or any other supported elliptic curve: openssl ecparam -genkey -name [curve] | openssl ec -out example. The values provided by the NIST Recommendations correspond roughly to OpenSSL security levels. prime256v1: X9. By default, OpenVPN uses BF-CBC as the data channel cipher. 62/SECG curve over a 256 bit prime field. func P256 () Curve. Parameter, Description. Having selected our curve, we now call ecparam to generate our parameters file. Parameters. Aug 29, 2018 ecdh ecdsa prime256v1 secp256r1 secp256k1. 4 Fast  NIST P-256, 'NIST P-256' , 'p256' , 'P-256' , 'prime256v1' , 'secp256r1' any extra parameters to export_key() will be passed to Crypto. conf file or on the server command line. The name parameter is one from the list returned by the command: openssl ecparam -list_curves. Elliptic Curve Domain Parameters over F p - Keys pair is generated using BSAFE Crypto-C with field type FT_PRIME256V1 : 4: ECC P with params: 384: Elliptic Curve Domain Parameters over F p - Keys pair is generated using BSAFE Crypto-C with field type FT_NIST_PRIME384 : 5: ECC P with params: 521 o parameters, which are optional, are the associated parameters for the algorithm identifier in the algorithm field. $ openssl ecparam -name prime256v1 -out prime256v1. URL Parameters. First, you have to get the EC parameters from which: the key will be generated: openssl ecparam -name prime256v1 -out prime256v1. pem -text -noout. Mar 23, 2017 Generate a private key (prime256v1 is the name of the parameters used # to generate the key, this is the same as P-256 in the JWA spec). 109. You can use the following command to list all supported curves: openssl ecparam -list_curves: When that is done, you can generate a key using the created parameters (several You do get the parameters, but apparently no longer linked to the OID, which might make a difference. The result will be a private key file at private. -out. Use the command. You need this when doing working with private key and two-step processes. GenerateECCKeyPair - Start generation of an elliptic curve key pair for the self - signed certificate. key -name prime256v1. pem # Derive the public key from the private key openssl ec -in ecdsa_private_key. Note that openssl uses the name prime256v1 but not everyone does. The default security level is level 1, which means a minimum of 2048 bits for the DH groups and 224 You can print the generated curve parameters to the terminal output with the following command: $ openssl ecparam -in prime256v1. SecureRandomBc); generator. pem -name prime256v1 -genkey. When the 'push' event fired in your service worker, all you knew was that the server was trying to tell you something, but not what it might be. ) uses secp256r1, or the OID. Note that some Certificate Authorities will only issue certificates for keys generated using prime256v1 parameters. 256. key -name prime256v1 -genkey ; NOTE: Because the native KEY is generated by OpenSSL, it has an EC parameters block above the key. ECGenParameterSpec ecGenSpec = new ECGenParameterSpec("prime256v1"); KeyPairGenerator toCharArray()); // Get Elliptic Curve Parameter spec for secp256r1  Jan 2, 2016 Ad Diffie Hellman parameters: https://weakdh. ECDSA: prime256v1/secp384r1/secp521r1 curves; RSA: 2048/3072/4096 bits keys; It defaults to ECDSA with prime256v1. This identifier must match a certificate stored later for the same key. Common EC keys have a single parameter indicating a named elliptic curve. By default, when generating a private key, openssl will only store the name of the curve in the generated parameters or key file, not the full set of explicit parameters associated with that name. This parameter can only be set in the postgresql. Note : Do not specific -pkeyopt ec_param_enc:named_curve while generating the key pair. Blowfish is an old (1993) and weak 6. Open a terminal where openSSL is installed and generate a key pair: openssl ecparam -name prime256v1 -genkey -out key. prime256v1 parameters

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